1 | !> @file poismg.f90 |
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2 | !------------------------------------------------------------------------------! |
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3 | ! This file is part of the PALM model system. |
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4 | ! |
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5 | ! PALM is free software: you can redistribute it and/or modify it under the |
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6 | ! terms of the GNU General Public License as published by the Free Software |
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7 | ! Foundation, either version 3 of the License, or (at your option) any later |
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8 | ! version. |
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9 | ! |
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10 | ! PALM is distributed in the hope that it will be useful, but WITHOUT ANY |
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11 | ! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR |
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12 | ! A PARTICULAR PURPOSE. See the GNU General Public License for more details. |
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13 | ! |
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14 | ! You should have received a copy of the GNU General Public License along with |
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15 | ! PALM. If not, see <http://www.gnu.org/licenses/>. |
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16 | ! |
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17 | ! Copyright 1997-2019 Leibniz Universitaet Hannover |
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18 | !------------------------------------------------------------------------------! |
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19 | ! |
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20 | ! Current revisions: |
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21 | ! ----------------- |
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22 | ! |
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23 | ! |
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24 | ! Former revisions: |
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25 | ! ----------------- |
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26 | ! $Id: poismg_mod.f90 3725 2019-02-07 10:11:02Z gronemeier $ |
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27 | ! unused subroutine removed |
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28 | ! |
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29 | ! 3655 2019-01-07 16:51:22Z knoop |
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30 | ! unnecessary check eliminated |
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31 | ! |
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32 | ! 3524 2018-11-14 13:36:44Z raasch |
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33 | ! mpi_abort arguments replaced to avoid compile errors |
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34 | ! |
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35 | ! 3241 2018-09-12 15:02:00Z raasch |
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36 | ! unused variables removed |
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37 | ! |
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38 | ! 3183 2018-07-27 14:25:55Z suehring |
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39 | ! Rename variables in mesoscale-offline nesting mode |
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40 | ! |
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41 | ! 3182 2018-07-27 13:36:03Z suehring |
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42 | ! Set lateral boundary conditions for divergence |
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43 | ! |
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44 | ! 2937 2018-03-27 14:58:33Z suehring |
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45 | ! Corrected "Former revisions" section |
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46 | ! |
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47 | ! 2696 2017-12-14 17:12:51Z kanani |
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48 | ! Change in file header (GPL part) |
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49 | ! Large-scale forcing implemented (MS) |
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50 | ! |
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51 | ! 2298 2017-06-29 09:28:18Z raasch |
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52 | ! sendrecv_in_background related parts removed |
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53 | ! |
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54 | ! 2232 2017-05-30 17:47:52Z suehring |
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55 | ! |
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56 | ! 2073 2016-11-30 14:34:05Z raasch |
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57 | ! change of openmp directives in restrict |
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58 | ! |
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59 | ! 2037 2016-10-26 11:15:40Z knoop |
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60 | ! Anelastic approximation implemented (stll error in optimized multigrid) |
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61 | ! |
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62 | ! 2021 2016-10-07 14:08:57Z suehring |
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63 | ! Bugfix: restore nest_bound_(l/r/s/n) in case of mg_switch_to_pe0 |
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64 | ! |
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65 | ! 2000 2016-08-20 18:09:15Z knoop |
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66 | ! Forced header and separation lines into 80 columns |
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67 | ! |
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68 | ! 1934 2016-06-13 09:46:57Z hellstea |
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69 | ! Rename subroutines and cpu-measure log points to indicate default version |
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70 | ! |
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71 | ! 1904 2016-05-11 13:06:12Z suehring |
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72 | ! Bugfix: enable special_exchange_horiz only for finer grid levels. |
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73 | ! Some formatting adjustments and variable descriptions. |
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74 | ! |
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75 | ! 1898 2016-05-03 11:27:17Z suehring |
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76 | ! Bugfix: bottom and top boundary condition in resid_fast |
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77 | ! Bugfix: restriction at nzb+1 |
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78 | ! formatting adjustments, variable descriptions added in some declaration blocks |
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79 | ! |
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80 | ! 1850 2016-04-08 13:29:27Z maronga |
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81 | ! Module renamed |
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82 | ! |
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83 | ! |
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84 | ! 1762 2016-02-25 12:31:13Z hellstea |
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85 | ! Introduction of nested domain feature |
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86 | ! |
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87 | ! 1682 2015-10-07 23:56:08Z knoop |
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88 | ! Code annotations made doxygen readable |
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89 | ! |
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90 | ! 1609 2015-07-03 15:37:58Z maronga |
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91 | ! Bugfix: allow compilation without __parallel. |
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92 | ! |
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93 | ! 1575 2015-03-27 09:56:27Z raasch |
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94 | ! Initial revision. |
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95 | ! Routine re-written and optimised based on poismg. |
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96 | ! |
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97 | ! Following optimisations have been made: |
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98 | ! - vectorisation (for Intel-CPUs) of the red-black algorithm by resorting |
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99 | ! array elements with even and odd indices |
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100 | ! - explicit boundary conditions for building walls removed (solver is |
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101 | ! running through the buildings |
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102 | ! - reduced data transfer in case of ghost point exchange, because only |
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103 | ! "red" or "black" data points need to be exchanged. This is not applied |
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104 | ! for coarser grid levels, since for then the transfer time is latency bound |
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105 | ! |
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106 | ! |
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107 | ! Description: |
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108 | ! ------------ |
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109 | !> Solves the Poisson equation for the perturbation pressure with a multigrid |
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110 | !> V- or W-Cycle scheme. |
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111 | !> |
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112 | !> This multigrid method was originally developed for PALM by Joerg Uhlenbrock, |
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113 | !> September 2000 - July 2001. It has been optimised for speed by Klaus |
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114 | !> Ketelsen in November 2014. |
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115 | !> |
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116 | !> @attention Loop unrolling and cache optimization in SOR-Red/Black method |
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117 | !> still does not give the expected speedup! |
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118 | !> |
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119 | !> @todo Further work required. |
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120 | !------------------------------------------------------------------------------! |
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121 | MODULE poismg_mod |
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122 | |
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123 | USE control_parameters, & |
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124 | ONLY: bc_dirichlet_l, bc_dirichlet_n, bc_dirichlet_r, & |
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125 | bc_dirichlet_s, bc_radiation_l, bc_radiation_n, bc_radiation_r, & |
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126 | bc_radiation_s, grid_level, nesting_offline |
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127 | |
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128 | USE cpulog, & |
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129 | ONLY: cpu_log, log_point_s |
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130 | |
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131 | USE kinds |
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132 | |
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133 | USE pegrid |
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134 | |
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135 | PRIVATE |
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136 | |
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137 | INTEGER, SAVE :: ind_even_odd !< border index between even and odd k index |
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138 | INTEGER, DIMENSION(:), SAVE, ALLOCATABLE :: even_odd_level !< stores ind_even_odd for all MG levels |
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139 | |
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140 | REAL(wp), DIMENSION(:,:), SAVE, ALLOCATABLE :: f1_mg_b, f2_mg_b, f3_mg_b !< blocked version of f1_mg ... |
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141 | |
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142 | INTERFACE poismg |
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143 | MODULE PROCEDURE poismg |
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144 | END INTERFACE poismg |
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145 | |
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146 | INTERFACE sort_k_to_even_odd_blocks |
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147 | MODULE PROCEDURE sort_k_to_even_odd_blocks |
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148 | ! MODULE PROCEDURE sort_k_to_even_odd_blocks_int |
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149 | MODULE PROCEDURE sort_k_to_even_odd_blocks_1d |
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150 | END INTERFACE sort_k_to_even_odd_blocks |
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151 | |
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152 | PUBLIC poismg |
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153 | |
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154 | CONTAINS |
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155 | |
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156 | !------------------------------------------------------------------------------! |
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157 | ! Description: |
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158 | ! ------------ |
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159 | !> Solves the Poisson equation for the perturbation pressure with a multigrid |
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160 | !> V- or W-Cycle scheme. |
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161 | !------------------------------------------------------------------------------! |
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162 | SUBROUTINE poismg( r ) |
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163 | |
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164 | USE arrays_3d, & |
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165 | ONLY: d, p_loc |
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166 | |
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167 | USE control_parameters, & |
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168 | ONLY: bc_lr_cyc, bc_ns_cyc, gathered_size, grid_level, & |
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169 | grid_level_count, ibc_p_t, & |
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170 | maximum_grid_level, message_string, mgcycles, mg_cycles, & |
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171 | mg_switch_to_pe0_level, residual_limit, subdomain_size |
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172 | |
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173 | USE cpulog, & |
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174 | ONLY: cpu_log, log_point_s |
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175 | |
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176 | USE indices, & |
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177 | ONLY: nxl, nxlg, nxl_mg, nxr, nxrg, nxr_mg, nys, nysg, nys_mg, nyn,& |
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178 | nyng, nyn_mg, nzb, nzt, nzt_mg |
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179 | |
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180 | IMPLICIT NONE |
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181 | |
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182 | REAL(wp) :: maxerror !< |
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183 | REAL(wp) :: maximum_mgcycles !< |
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184 | REAL(wp) :: residual_norm !< |
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185 | |
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186 | REAL(wp), DIMENSION(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) :: r !< |
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187 | |
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188 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: p3 !< |
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189 | |
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190 | |
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191 | CALL cpu_log( log_point_s(29), 'poismg', 'start' ) |
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192 | ! |
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193 | !-- Initialize arrays and variables used in this subroutine |
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194 | |
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195 | !-- If the number of grid points of the gathered grid, which is collected |
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196 | !-- on PE0, is larger than the number of grid points of an PE, than array |
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197 | !-- p3 will be enlarged. |
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198 | IF ( gathered_size > subdomain_size ) THEN |
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199 | ALLOCATE( p3(nzb:nzt_mg(mg_switch_to_pe0_level)+1,nys_mg( & |
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200 | mg_switch_to_pe0_level)-1:nyn_mg(mg_switch_to_pe0_level)+1,& |
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201 | nxl_mg(mg_switch_to_pe0_level)-1:nxr_mg( & |
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202 | mg_switch_to_pe0_level)+1) ) |
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203 | ELSE |
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204 | ALLOCATE ( p3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) ) |
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205 | ENDIF |
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206 | |
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207 | p3 = 0.0_wp |
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208 | |
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209 | |
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210 | ! |
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211 | !-- Ghost boundaries have to be added to divergence array. |
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212 | !-- Exchange routine needs to know the grid level! |
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213 | grid_level = maximum_grid_level |
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214 | CALL exchange_horiz( d, 1) |
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215 | ! |
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216 | !-- Set bottom and top boundary conditions |
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217 | d(nzb,:,:) = d(nzb+1,:,:) |
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218 | IF ( ibc_p_t == 1 ) d(nzt+1,:,: ) = d(nzt,:,:) |
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219 | ! |
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220 | !-- Set lateral boundary conditions in non-cyclic case |
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221 | IF ( .NOT. bc_lr_cyc ) THEN |
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222 | IF ( bc_dirichlet_l .OR. bc_radiation_l ) & |
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223 | d(:,:,nxl-1) = d(:,:,nxl) |
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224 | IF ( bc_dirichlet_r .OR. bc_radiation_r ) & |
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225 | d(:,:,nxr+1) = d(:,:,nxr) |
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226 | ENDIF |
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227 | IF ( .NOT. bc_ns_cyc ) THEN |
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228 | IF ( bc_dirichlet_n .OR. bc_radiation_n ) & |
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229 | d(:,nyn+1,:) = d(:,nyn,:) |
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230 | IF ( bc_dirichlet_s .OR. bc_radiation_s ) & |
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231 | d(:,nys-1,:) = d(:,nys,:) |
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232 | ENDIF |
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233 | ! |
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234 | !-- Initiation of the multigrid scheme. Does n cycles until the |
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235 | !-- residual is smaller than the given limit. The accuracy of the solution |
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236 | !-- of the poisson equation will increase with the number of cycles. |
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237 | !-- If the number of cycles is preset by the user, this number will be |
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238 | !-- carried out regardless of the accuracy. |
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239 | grid_level_count = 0 |
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240 | mgcycles = 0 |
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241 | IF ( mg_cycles == -1 ) THEN |
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242 | maximum_mgcycles = 0 |
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243 | residual_norm = 1.0_wp |
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244 | ELSE |
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245 | maximum_mgcycles = mg_cycles |
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246 | residual_norm = 0.0_wp |
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247 | ENDIF |
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248 | |
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249 | ! |
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250 | !-- Initial settings for sorting k-dimension from sequential order (alternate |
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251 | !-- even/odd) into blocks of even and odd or vice versa |
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252 | CALL init_even_odd_blocks |
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253 | |
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254 | ! |
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255 | !-- Sort input arrays in even/odd blocks along k-dimension |
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256 | CALL sort_k_to_even_odd_blocks( d, grid_level ) |
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257 | CALL sort_k_to_even_odd_blocks( p_loc, grid_level ) |
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258 | |
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259 | ! |
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260 | !-- The complete multigrid cycles are running in block mode, i.e. over |
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261 | !-- seperate data blocks of even and odd indices |
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262 | DO WHILE ( residual_norm > residual_limit .OR. & |
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263 | mgcycles < maximum_mgcycles ) |
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264 | |
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265 | CALL next_mg_level( d, p_loc, p3, r) |
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266 | |
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267 | ! |
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268 | !-- Calculate the residual if the user has not preset the number of |
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269 | !-- cycles to be performed |
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270 | IF ( maximum_mgcycles == 0 ) THEN |
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271 | CALL resid( d, p_loc, r ) |
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272 | maxerror = SUM( r(nzb+1:nzt,nys:nyn,nxl:nxr)**2 ) |
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273 | |
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274 | #if defined( __parallel ) |
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275 | IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr ) |
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276 | CALL MPI_ALLREDUCE( maxerror, residual_norm, 1, MPI_REAL, & |
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277 | MPI_SUM, comm2d, ierr) |
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278 | #else |
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279 | residual_norm = maxerror |
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280 | #endif |
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281 | residual_norm = SQRT( residual_norm ) |
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282 | ENDIF |
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283 | |
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284 | mgcycles = mgcycles + 1 |
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285 | |
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286 | ! |
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287 | !-- If the user has not limited the number of cycles, stop the run in case |
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288 | !-- of insufficient convergence |
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289 | IF ( mgcycles > 1000 .AND. mg_cycles == -1 ) THEN |
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290 | message_string = 'no sufficient convergence within 1000 cycles' |
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291 | CALL message( 'poismg', 'PA0283', 1, 2, 0, 6, 0 ) |
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292 | ENDIF |
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293 | |
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294 | ENDDO |
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295 | |
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296 | DEALLOCATE( p3 ) |
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297 | ! |
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298 | !-- Result has to be sorted back from even/odd blocks to sequential order |
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299 | CALL sort_k_to_sequential( p_loc ) |
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300 | ! |
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301 | !-- Unset the grid level. Variable is used to determine the MPI datatypes for |
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302 | !-- ghost point exchange |
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303 | grid_level = 0 |
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304 | |
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305 | CALL cpu_log( log_point_s(29), 'poismg', 'stop' ) |
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306 | |
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307 | END SUBROUTINE poismg |
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308 | |
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309 | |
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310 | !------------------------------------------------------------------------------! |
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311 | ! Description: |
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312 | ! ------------ |
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313 | !> Computes the residual of the perturbation pressure. |
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314 | !------------------------------------------------------------------------------! |
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315 | SUBROUTINE resid( f_mg, p_mg, r ) |
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316 | |
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317 | |
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318 | USE arrays_3d, & |
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319 | ONLY: rho_air_mg |
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320 | |
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321 | USE control_parameters, & |
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322 | ONLY: bc_lr_cyc, bc_ns_cyc, ibc_p_b, ibc_p_t |
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323 | USE grid_variables, & |
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324 | ONLY: ddx2_mg, ddy2_mg |
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325 | |
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326 | USE indices, & |
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327 | ONLY: nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, nzt_mg |
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328 | |
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329 | IMPLICIT NONE |
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330 | |
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331 | INTEGER(iwp) :: i !< index variable along x |
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332 | INTEGER(iwp) :: j !< index variable along y |
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333 | INTEGER(iwp) :: k !< index variable along z |
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334 | INTEGER(iwp) :: l !< index indicating grid level |
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335 | INTEGER(iwp) :: km1 !< index variable along z dimension (k-1) |
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336 | INTEGER(iwp) :: kp1 !< index variable along z dimension (k+1) |
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337 | |
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338 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
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339 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
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340 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: f_mg !< velocity divergence |
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341 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
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342 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
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343 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: p_mg !< perturbation pressure |
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344 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
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345 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
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346 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: r !< residuum of perturbation pressure |
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347 | |
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348 | ! |
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349 | !-- Calculate the residual |
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350 | l = grid_level |
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351 | |
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352 | CALL cpu_log( log_point_s(53), 'resid', 'start' ) |
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353 | !$OMP PARALLEL PRIVATE (i,j,k,km1,kp1) |
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354 | !$OMP DO |
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355 | DO i = nxl_mg(l), nxr_mg(l) |
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356 | DO j = nys_mg(l), nyn_mg(l) |
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357 | !DIR$ IVDEP |
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358 | DO k = ind_even_odd+1, nzt_mg(l) |
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359 | km1 = k-ind_even_odd-1 |
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360 | kp1 = k-ind_even_odd |
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361 | r(k,j,i) = f_mg(k,j,i) & |
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362 | - rho_air_mg(k,l) * ddx2_mg(l) * & |
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363 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
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364 | - rho_air_mg(k,l) * ddy2_mg(l) * & |
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365 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
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366 | - f2_mg_b(k,l) * p_mg(kp1,j,i) & |
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367 | - f3_mg_b(k,l) * p_mg(km1,j,i) & |
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368 | + f1_mg_b(k,l) * p_mg(k,j,i) |
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369 | ENDDO |
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370 | !DIR$ IVDEP |
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371 | DO k = nzb+1, ind_even_odd |
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372 | km1 = k+ind_even_odd |
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373 | kp1 = k+ind_even_odd+1 |
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374 | r(k,j,i) = f_mg(k,j,i) & |
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375 | - rho_air_mg(k,l) * ddx2_mg(l) * & |
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376 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
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377 | - rho_air_mg(k,l) * ddy2_mg(l) * & |
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378 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
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379 | - f2_mg_b(k,l) * p_mg(kp1,j,i) & |
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380 | - f3_mg_b(k,l) * p_mg(km1,j,i) & |
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381 | + f1_mg_b(k,l) * p_mg(k,j,i) |
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382 | ENDDO |
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383 | ENDDO |
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384 | ENDDO |
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385 | !$OMP END PARALLEL |
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386 | ! |
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387 | !-- Horizontal boundary conditions |
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388 | CALL exchange_horiz( r, 1) |
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389 | |
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390 | IF ( .NOT. bc_lr_cyc ) THEN |
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391 | IF ( bc_dirichlet_l .OR. bc_radiation_l ) THEN |
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392 | r(:,:,nxl_mg(l)-1) = r(:,:,nxl_mg(l)) |
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393 | ENDIF |
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394 | IF ( bc_dirichlet_r .OR. bc_radiation_r ) THEN |
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395 | r(:,:,nxr_mg(l)+1) = r(:,:,nxr_mg(l)) |
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396 | ENDIF |
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397 | ENDIF |
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398 | |
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399 | IF ( .NOT. bc_ns_cyc ) THEN |
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400 | IF ( bc_dirichlet_n .OR. bc_radiation_n ) THEN |
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401 | r(:,nyn_mg(l)+1,:) = r(:,nyn_mg(l),:) |
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402 | ENDIF |
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403 | IF ( bc_dirichlet_s .OR. bc_radiation_s ) THEN |
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404 | r(:,nys_mg(l)-1,:) = r(:,nys_mg(l),:) |
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405 | ENDIF |
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406 | ENDIF |
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407 | |
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408 | ! |
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409 | !-- Boundary conditions at bottom and top of the domain. Points may be within |
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410 | !-- buildings, but that doesn't matter. |
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411 | IF ( ibc_p_b == 1 ) THEN |
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412 | ! |
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413 | !-- equivalent to r(nzb,:,: ) = r(nzb+1,:,:) |
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414 | r(nzb,:,: ) = r(ind_even_odd+1,:,:) |
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415 | ELSE |
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416 | r(nzb,:,: ) = 0.0_wp |
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417 | ENDIF |
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418 | |
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419 | IF ( ibc_p_t == 1 ) THEN |
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420 | ! |
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421 | !-- equivalent to r(nzt_mg(l)+1,:,: ) = r(nzt_mg(l),:,:) |
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422 | r(nzt_mg(l)+1,:,: ) = r(ind_even_odd,:,:) |
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423 | ELSE |
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424 | r(nzt_mg(l)+1,:,: ) = 0.0_wp |
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425 | ENDIF |
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426 | |
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427 | CALL cpu_log( log_point_s(53), 'resid', 'stop' ) |
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428 | |
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429 | END SUBROUTINE resid |
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430 | |
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431 | |
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432 | !------------------------------------------------------------------------------! |
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433 | ! Description: |
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434 | ! ------------ |
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435 | !> Interpolates the residual on the next coarser grid with "full weighting" |
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436 | !> scheme |
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437 | !------------------------------------------------------------------------------! |
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438 | SUBROUTINE restrict( f_mg, r ) |
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439 | |
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440 | |
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441 | USE control_parameters, & |
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442 | ONLY: bc_lr_cyc, bc_ns_cyc, ibc_p_b, ibc_p_t |
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443 | |
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444 | USE indices, & |
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445 | ONLY: nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, nzt_mg |
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446 | |
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447 | IMPLICIT NONE |
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448 | |
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449 | INTEGER(iwp) :: i !< index variable along x on finer grid |
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450 | INTEGER(iwp) :: ic !< index variable along x on coarser grid |
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451 | INTEGER(iwp) :: j !< index variable along y on finer grid |
---|
452 | INTEGER(iwp) :: jc !< index variable along y on coarser grid |
---|
453 | INTEGER(iwp) :: k !< index variable along z on finer grid |
---|
454 | INTEGER(iwp) :: kc !< index variable along z on coarser grid |
---|
455 | INTEGER(iwp) :: l !< index indicating finer grid level |
---|
456 | INTEGER(iwp) :: km1 !< index variable along z dimension (k-1 on finer level) |
---|
457 | INTEGER(iwp) :: kp1 !< index variable along z dimension (k+1 on finer level) |
---|
458 | |
---|
459 | |
---|
460 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
461 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
462 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: & |
---|
463 | f_mg !< Residual on coarser grid level |
---|
464 | |
---|
465 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level+1)+1, & |
---|
466 | nys_mg(grid_level+1)-1:nyn_mg(grid_level+1)+1, & |
---|
467 | nxl_mg(grid_level+1)-1:nxr_mg(grid_level+1)+1) :: & |
---|
468 | r !< Residual on finer grid level |
---|
469 | |
---|
470 | ! |
---|
471 | !-- Interpolate the residual |
---|
472 | l = grid_level |
---|
473 | |
---|
474 | CALL cpu_log( log_point_s(54), 'restrict', 'start' ) |
---|
475 | ! |
---|
476 | !-- No wall treatment |
---|
477 | !$OMP PARALLEL PRIVATE (i,j,k,ic,jc,kc,km1,kp1) |
---|
478 | !$OMP DO SCHEDULE( STATIC ) |
---|
479 | DO ic = nxl_mg(l), nxr_mg(l) |
---|
480 | i = 2*ic |
---|
481 | DO jc = nys_mg(l), nyn_mg(l) |
---|
482 | ! |
---|
483 | !-- Calculation for the first point along k |
---|
484 | j = 2*jc |
---|
485 | ! |
---|
486 | !-- Calculation for the other points along k |
---|
487 | !DIR$ IVDEP |
---|
488 | DO k = ind_even_odd+1, nzt_mg(l+1) ! Fine grid at this point |
---|
489 | km1 = k-ind_even_odd-1 |
---|
490 | kp1 = k-ind_even_odd |
---|
491 | kc = k-ind_even_odd ! Coarse grid index |
---|
492 | |
---|
493 | f_mg(kc,jc,ic) = 1.0_wp / 64.0_wp * ( & |
---|
494 | 8.0_wp * r(k,j,i) & |
---|
495 | + 4.0_wp * ( r(k,j,i-1) + r(k,j,i+1) + & |
---|
496 | r(k,j+1,i) + r(k,j-1,i) ) & |
---|
497 | + 2.0_wp * ( r(k,j-1,i-1) + r(k,j+1,i-1) + & |
---|
498 | r(k,j-1,i+1) + r(k,j+1,i+1) ) & |
---|
499 | + 4.0_wp * r(km1,j,i) & |
---|
500 | + 2.0_wp * ( r(km1,j,i-1) + r(km1,j,i+1) + & |
---|
501 | r(km1,j+1,i) + r(km1,j-1,i) ) & |
---|
502 | + ( r(km1,j-1,i-1) + r(km1,j+1,i-1) + & |
---|
503 | r(km1,j-1,i+1) + r(km1,j+1,i+1) ) & |
---|
504 | + 4.0_wp * r(kp1,j,i) & |
---|
505 | + 2.0_wp * ( r(kp1,j,i-1) + r(kp1,j,i+1) + & |
---|
506 | r(kp1,j+1,i) + r(kp1,j-1,i) ) & |
---|
507 | + ( r(kp1,j-1,i-1) + r(kp1,j+1,i-1) + & |
---|
508 | r(kp1,j-1,i+1) + r(kp1,j+1,i+1) ) & |
---|
509 | ) |
---|
510 | ENDDO |
---|
511 | ENDDO |
---|
512 | ENDDO |
---|
513 | !$OMP ENDDO |
---|
514 | !$OMP END PARALLEL |
---|
515 | |
---|
516 | ! |
---|
517 | !-- Ghost point exchange |
---|
518 | CALL exchange_horiz( f_mg, 1) |
---|
519 | ! |
---|
520 | !-- Horizontal boundary conditions |
---|
521 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
522 | IF ( bc_dirichlet_l .OR. bc_radiation_l ) THEN |
---|
523 | f_mg(:,:,nxl_mg(l)-1) = f_mg(:,:,nxl_mg(l)) |
---|
524 | ENDIF |
---|
525 | IF ( bc_dirichlet_r .OR. bc_radiation_r ) THEN |
---|
526 | f_mg(:,:,nxr_mg(l)+1) = f_mg(:,:,nxr_mg(l)) |
---|
527 | ENDIF |
---|
528 | ENDIF |
---|
529 | |
---|
530 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
531 | IF ( bc_dirichlet_n .OR. bc_radiation_n ) THEN |
---|
532 | f_mg(:,nyn_mg(l)+1,:) = f_mg(:,nyn_mg(l),:) |
---|
533 | ENDIF |
---|
534 | IF ( bc_dirichlet_s .OR. bc_radiation_s ) THEN |
---|
535 | f_mg(:,nys_mg(l)-1,:) = f_mg(:,nys_mg(l),:) |
---|
536 | ENDIF |
---|
537 | ENDIF |
---|
538 | |
---|
539 | ! |
---|
540 | !-- Boundary conditions at bottom and top of the domain. |
---|
541 | !-- These points are not handled by the above loop. Points may be within |
---|
542 | !-- buildings, but that doesn't matter. Remark: f_mg is ordered sequentielly |
---|
543 | !-- after interpolation on coarse grid (is ordered in odd-even blocks further |
---|
544 | !-- below). |
---|
545 | IF ( ibc_p_b == 1 ) THEN |
---|
546 | f_mg(nzb,:,: ) = f_mg(nzb+1,:,:) |
---|
547 | ELSE |
---|
548 | f_mg(nzb,:,: ) = 0.0_wp |
---|
549 | ENDIF |
---|
550 | |
---|
551 | IF ( ibc_p_t == 1 ) THEN |
---|
552 | f_mg(nzt_mg(l)+1,:,: ) = f_mg(nzt_mg(l),:,:) |
---|
553 | ELSE |
---|
554 | f_mg(nzt_mg(l)+1,:,: ) = 0.0_wp |
---|
555 | ENDIF |
---|
556 | |
---|
557 | CALL cpu_log( log_point_s(54), 'restrict', 'stop' ) |
---|
558 | ! |
---|
559 | !-- Since residual is in sequential order after interpolation, an additional |
---|
560 | !-- sorting in odd-even blocks along z dimension is required at this point. |
---|
561 | CALL sort_k_to_even_odd_blocks( f_mg , l) |
---|
562 | |
---|
563 | END SUBROUTINE restrict |
---|
564 | |
---|
565 | |
---|
566 | !------------------------------------------------------------------------------! |
---|
567 | ! Description: |
---|
568 | ! ------------ |
---|
569 | !> Interpolates the correction of the perturbation pressure |
---|
570 | !> to the next finer grid. |
---|
571 | !------------------------------------------------------------------------------! |
---|
572 | SUBROUTINE prolong( p, temp ) |
---|
573 | |
---|
574 | |
---|
575 | USE control_parameters, & |
---|
576 | ONLY: bc_lr_cyc, bc_ns_cyc, ibc_p_b, ibc_p_t |
---|
577 | USE indices, & |
---|
578 | ONLY: nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, nzt_mg |
---|
579 | |
---|
580 | IMPLICIT NONE |
---|
581 | |
---|
582 | INTEGER(iwp) :: i !< index variable along x on coarser grid level |
---|
583 | INTEGER(iwp) :: j !< index variable along y on coarser grid level |
---|
584 | INTEGER(iwp) :: k !< index variable along z on coarser grid level |
---|
585 | INTEGER(iwp) :: l !< index indicating finer grid level |
---|
586 | INTEGER(iwp) :: kp1 !< index variable along z |
---|
587 | INTEGER(iwp) :: ke !< index for prolog even |
---|
588 | INTEGER(iwp) :: ko !< index for prolog odd |
---|
589 | |
---|
590 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level-1)+1, & |
---|
591 | nys_mg(grid_level-1)-1:nyn_mg(grid_level-1)+1, & |
---|
592 | nxl_mg(grid_level-1)-1:nxr_mg(grid_level-1)+1 ) :: & |
---|
593 | p !< perturbation pressure on coarser grid level |
---|
594 | |
---|
595 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
596 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
597 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: & |
---|
598 | temp !< perturbation pressure on finer grid level |
---|
599 | |
---|
600 | |
---|
601 | CALL cpu_log( log_point_s(55), 'prolong', 'start' ) |
---|
602 | |
---|
603 | ! |
---|
604 | !-- First, store elements of the coarser grid on the next finer grid |
---|
605 | l = grid_level |
---|
606 | ind_even_odd = even_odd_level(grid_level-1) |
---|
607 | |
---|
608 | !$OMP PARALLEL PRIVATE (i,j,k,kp1,ke,ko) |
---|
609 | !$OMP DO |
---|
610 | DO i = nxl_mg(l-1), nxr_mg(l-1) |
---|
611 | DO j = nys_mg(l-1), nyn_mg(l-1) |
---|
612 | |
---|
613 | !DIR$ IVDEP |
---|
614 | DO k = ind_even_odd+1, nzt_mg(l-1) |
---|
615 | kp1 = k - ind_even_odd |
---|
616 | ke = 2 * ( k-ind_even_odd - 1 ) + 1 |
---|
617 | ko = 2 * k - 1 |
---|
618 | ! |
---|
619 | !-- Points of the coarse grid are directly stored on the next finer |
---|
620 | !-- grid |
---|
621 | temp(ko,2*j,2*i) = p(k,j,i) |
---|
622 | ! |
---|
623 | !-- Points between two coarse-grid points |
---|
624 | temp(ko,2*j,2*i+1) = 0.5_wp * ( p(k,j,i) + p(k,j,i+1) ) |
---|
625 | temp(ko,2*j+1,2*i) = 0.5_wp * ( p(k,j,i) + p(k,j+1,i) ) |
---|
626 | temp(ke,2*j,2*i) = 0.5_wp * ( p(k,j,i) + p(kp1,j,i) ) |
---|
627 | ! |
---|
628 | !-- Points in the center of the planes stretched by four points |
---|
629 | !-- of the coarse grid cube |
---|
630 | temp(ko,2*j+1,2*i+1) = 0.25_wp * ( p(k,j,i) + p(k,j,i+1) + & |
---|
631 | p(k,j+1,i) + p(k,j+1,i+1) ) |
---|
632 | temp(ke,2*j,2*i+1) = 0.25_wp * ( p(k,j,i) + p(k,j,i+1) + & |
---|
633 | p(kp1,j,i) + p(kp1,j,i+1) ) |
---|
634 | temp(ke,2*j+1,2*i) = 0.25_wp * ( p(k,j,i) + p(k,j+1,i) + & |
---|
635 | p(kp1,j,i) + p(kp1,j+1,i) ) |
---|
636 | ! |
---|
637 | !-- Points in the middle of coarse grid cube |
---|
638 | temp(ke,2*j+1,2*i+1) = 0.125_wp * & |
---|
639 | ( p(k,j,i) + p(k,j,i+1) + & |
---|
640 | p(k,j+1,i) + p(k,j+1,i+1) + & |
---|
641 | p(kp1,j,i) + p(kp1,j,i+1) + & |
---|
642 | p(kp1,j+1,i) + p(kp1,j+1,i+1) ) |
---|
643 | |
---|
644 | ENDDO |
---|
645 | |
---|
646 | !DIR$ IVDEP |
---|
647 | DO k = nzb+1, ind_even_odd |
---|
648 | kp1 = k + ind_even_odd + 1 |
---|
649 | ke = 2 * k |
---|
650 | ko = 2 * ( k + ind_even_odd ) |
---|
651 | ! |
---|
652 | !-- Points of the coarse grid are directly stored on the next finer |
---|
653 | !-- grid |
---|
654 | temp(ko,2*j,2*i) = p(k,j,i) |
---|
655 | ! |
---|
656 | !-- Points between two coarse-grid points |
---|
657 | temp(ko,2*j,2*i+1) = 0.5_wp * ( p(k,j,i) + p(k,j,i+1) ) |
---|
658 | temp(ko,2*j+1,2*i) = 0.5_wp * ( p(k,j,i) + p(k,j+1,i) ) |
---|
659 | temp(ke,2*j,2*i) = 0.5_wp * ( p(k,j,i) + p(kp1,j,i) ) |
---|
660 | ! |
---|
661 | !-- Points in the center of the planes stretched by four points |
---|
662 | !-- of the coarse grid cube |
---|
663 | temp(ko,2*j+1,2*i+1) = 0.25_wp * ( p(k,j,i) + p(k,j,i+1) + & |
---|
664 | p(k,j+1,i) + p(k,j+1,i+1) ) |
---|
665 | temp(ke,2*j,2*i+1) = 0.25_wp * ( p(k,j,i) + p(k,j,i+1) + & |
---|
666 | p(kp1,j,i) + p(kp1,j,i+1) ) |
---|
667 | temp(ke,2*j+1,2*i) = 0.25_wp * ( p(k,j,i) + p(k,j+1,i) + & |
---|
668 | p(kp1,j,i) + p(kp1,j+1,i) ) |
---|
669 | ! |
---|
670 | !-- Points in the middle of coarse grid cube |
---|
671 | temp(ke,2*j+1,2*i+1) = 0.125_wp * & |
---|
672 | ( p(k,j,i) + p(k,j,i+1) + & |
---|
673 | p(k,j+1,i) + p(k,j+1,i+1) + & |
---|
674 | p(kp1,j,i) + p(kp1,j,i+1) + & |
---|
675 | p(kp1,j+1,i) + p(kp1,j+1,i+1) ) |
---|
676 | |
---|
677 | ENDDO |
---|
678 | |
---|
679 | ENDDO |
---|
680 | ENDDO |
---|
681 | !$OMP END PARALLEL |
---|
682 | |
---|
683 | ind_even_odd = even_odd_level(grid_level) |
---|
684 | ! |
---|
685 | !-- Horizontal boundary conditions |
---|
686 | CALL exchange_horiz( temp, 1) |
---|
687 | |
---|
688 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
689 | IF ( bc_dirichlet_l .OR. bc_radiation_l ) THEN |
---|
690 | temp(:,:,nxl_mg(l)-1) = temp(:,:,nxl_mg(l)) |
---|
691 | ENDIF |
---|
692 | IF ( bc_dirichlet_r .OR. bc_radiation_r ) THEN |
---|
693 | temp(:,:,nxr_mg(l)+1) = temp(:,:,nxr_mg(l)) |
---|
694 | ENDIF |
---|
695 | ENDIF |
---|
696 | |
---|
697 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
698 | IF ( bc_dirichlet_n .OR. bc_radiation_n ) THEN |
---|
699 | temp(:,nyn_mg(l)+1,:) = temp(:,nyn_mg(l),:) |
---|
700 | ENDIF |
---|
701 | IF ( bc_dirichlet_s .OR. bc_radiation_s ) THEN |
---|
702 | temp(:,nys_mg(l)-1,:) = temp(:,nys_mg(l),:) |
---|
703 | ENDIF |
---|
704 | ENDIF |
---|
705 | |
---|
706 | ! |
---|
707 | !-- Bottom and top boundary conditions |
---|
708 | IF ( ibc_p_b == 1 ) THEN |
---|
709 | ! |
---|
710 | !-- equivalent to temp(nzb,:,: ) = temp(nzb+1,:,:) |
---|
711 | temp(nzb,:,: ) = temp(ind_even_odd+1,:,:) |
---|
712 | ELSE |
---|
713 | temp(nzb,:,: ) = 0.0_wp |
---|
714 | ENDIF |
---|
715 | |
---|
716 | IF ( ibc_p_t == 1 ) THEN |
---|
717 | ! |
---|
718 | !-- equivalent to temp(nzt_mg(l)+1,:,: ) = temp(nzt_mg(l),:,:) |
---|
719 | temp(nzt_mg(l)+1,:,: ) = temp(ind_even_odd,:,:) |
---|
720 | ELSE |
---|
721 | temp(nzt_mg(l)+1,:,: ) = 0.0_wp |
---|
722 | ENDIF |
---|
723 | |
---|
724 | CALL cpu_log( log_point_s(55), 'prolong', 'stop' ) |
---|
725 | |
---|
726 | END SUBROUTINE prolong |
---|
727 | |
---|
728 | |
---|
729 | !------------------------------------------------------------------------------! |
---|
730 | ! Description: |
---|
731 | ! ------------ |
---|
732 | !> Relaxation method for the multigrid scheme. A Gauss-Seidel iteration with |
---|
733 | !> 3D-Red-Black decomposition (GS-RB) is used. |
---|
734 | !------------------------------------------------------------------------------! |
---|
735 | SUBROUTINE redblack( f_mg, p_mg ) |
---|
736 | |
---|
737 | |
---|
738 | USE arrays_3d, & |
---|
739 | ONLY: rho_air_mg |
---|
740 | |
---|
741 | USE control_parameters, & |
---|
742 | ONLY: bc_lr_cyc, bc_ns_cyc, ibc_p_b, ibc_p_t, ngsrb |
---|
743 | |
---|
744 | USE grid_variables, & |
---|
745 | ONLY: ddx2_mg, ddy2_mg |
---|
746 | |
---|
747 | USE indices, & |
---|
748 | ONLY: nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, nzt_mg |
---|
749 | |
---|
750 | IMPLICIT NONE |
---|
751 | |
---|
752 | INTEGER(iwp) :: color !< grid point color, either red or black |
---|
753 | INTEGER(iwp) :: i !< index variable along x |
---|
754 | INTEGER(iwp) :: ic !< index variable along x |
---|
755 | INTEGER(iwp) :: j !< index variable along y |
---|
756 | INTEGER(iwp) :: jc !< index variable along y |
---|
757 | INTEGER(iwp) :: jj !< index variable along y |
---|
758 | INTEGER(iwp) :: k !< index variable along z |
---|
759 | INTEGER(iwp) :: l !< grid level |
---|
760 | INTEGER(iwp) :: n !< loop variable GauÃ-Seidel iterations |
---|
761 | INTEGER(iwp) :: km1 !< index variable (k-1) |
---|
762 | INTEGER(iwp) :: kp1 !< index variable (k+1) |
---|
763 | |
---|
764 | LOGICAL :: unroll !< flag indicating whether loop unrolling is possible |
---|
765 | |
---|
766 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
767 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
768 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: & |
---|
769 | f_mg !< residual of perturbation pressure |
---|
770 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
771 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
772 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: & |
---|
773 | p_mg !< perturbation pressure |
---|
774 | |
---|
775 | l = grid_level |
---|
776 | |
---|
777 | unroll = ( MOD( nyn_mg(l)-nys_mg(l)+1, 4 ) == 0 .AND. & |
---|
778 | MOD( nxr_mg(l)-nxl_mg(l)+1, 2 ) == 0 ) |
---|
779 | |
---|
780 | DO n = 1, ngsrb |
---|
781 | |
---|
782 | DO color = 1, 2 |
---|
783 | |
---|
784 | IF ( .NOT. unroll ) THEN |
---|
785 | |
---|
786 | CALL cpu_log( log_point_s(36), 'redblack_no_unroll_f', 'start' ) |
---|
787 | ! |
---|
788 | !-- Without unrolling of loops, no cache optimization |
---|
789 | !$OMP PARALLEL PRIVATE (i,j,k,km1,kp1) |
---|
790 | !$OMP DO |
---|
791 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
792 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
793 | !DIR$ IVDEP |
---|
794 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
795 | km1 = k-ind_even_odd-1 |
---|
796 | kp1 = k-ind_even_odd |
---|
797 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
798 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
799 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
800 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
801 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
802 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
803 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
804 | - f_mg(k,j,i) ) |
---|
805 | ENDDO |
---|
806 | ENDDO |
---|
807 | ENDDO |
---|
808 | |
---|
809 | !$OMP DO |
---|
810 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
811 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
812 | !DIR$ IVDEP |
---|
813 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
814 | km1 = k-ind_even_odd-1 |
---|
815 | kp1 = k-ind_even_odd |
---|
816 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
817 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
818 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
819 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
820 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
821 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
822 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
823 | - f_mg(k,j,i) ) |
---|
824 | ENDDO |
---|
825 | ENDDO |
---|
826 | ENDDO |
---|
827 | |
---|
828 | !$OMP DO |
---|
829 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
830 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
831 | !DIR$ IVDEP |
---|
832 | DO k = nzb+1, ind_even_odd |
---|
833 | km1 = k+ind_even_odd |
---|
834 | kp1 = k+ind_even_odd+1 |
---|
835 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
836 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
837 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
838 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
839 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
840 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
841 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
842 | - f_mg(k,j,i) ) |
---|
843 | ENDDO |
---|
844 | ENDDO |
---|
845 | ENDDO |
---|
846 | |
---|
847 | !$OMP DO |
---|
848 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
849 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
850 | !DIR$ IVDEP |
---|
851 | DO k = nzb+1, ind_even_odd |
---|
852 | km1 = k+ind_even_odd |
---|
853 | kp1 = k+ind_even_odd+1 |
---|
854 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
855 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
856 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
857 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
858 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
859 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
860 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
861 | - f_mg(k,j,i) ) |
---|
862 | ENDDO |
---|
863 | ENDDO |
---|
864 | ENDDO |
---|
865 | !$OMP END PARALLEL |
---|
866 | |
---|
867 | CALL cpu_log( log_point_s(36), 'redblack_no_unroll_f', 'stop' ) |
---|
868 | |
---|
869 | ELSE |
---|
870 | ! |
---|
871 | !-- Loop unrolling along y, only one i loop for better cache use |
---|
872 | CALL cpu_log( log_point_s(38), 'redblack_unroll_f', 'start' ) |
---|
873 | |
---|
874 | !$OMP PARALLEL PRIVATE (i,j,k,ic,jc,km1,kp1,jj) |
---|
875 | !$OMP DO |
---|
876 | DO ic = nxl_mg(l), nxr_mg(l), 2 |
---|
877 | DO jc = nys_mg(l), nyn_mg(l), 4 |
---|
878 | i = ic |
---|
879 | jj = jc+2-color |
---|
880 | !DIR$ IVDEP |
---|
881 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
882 | km1 = k-ind_even_odd-1 |
---|
883 | kp1 = k-ind_even_odd |
---|
884 | j = jj |
---|
885 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
886 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
887 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
888 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
889 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
890 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
891 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
892 | - f_mg(k,j,i) ) |
---|
893 | j = jj+2 |
---|
894 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
895 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
896 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
897 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
898 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
899 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
900 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
901 | - f_mg(k,j,i) ) |
---|
902 | ENDDO |
---|
903 | |
---|
904 | i = ic+1 |
---|
905 | jj = jc+color-1 |
---|
906 | !DIR$ IVDEP |
---|
907 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
908 | km1 = k-ind_even_odd-1 |
---|
909 | kp1 = k-ind_even_odd |
---|
910 | j = jj |
---|
911 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
912 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
913 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
914 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
915 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
916 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
917 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
918 | - f_mg(k,j,i) ) |
---|
919 | j = jj+2 |
---|
920 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
921 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
922 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
923 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
924 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
925 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
926 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
927 | - f_mg(k,j,i) ) |
---|
928 | ENDDO |
---|
929 | |
---|
930 | i = ic |
---|
931 | jj = jc+color-1 |
---|
932 | !DIR$ IVDEP |
---|
933 | DO k = nzb+1, ind_even_odd |
---|
934 | km1 = k+ind_even_odd |
---|
935 | kp1 = k+ind_even_odd+1 |
---|
936 | j = jj |
---|
937 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
938 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
939 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
940 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
941 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
942 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
943 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
944 | - f_mg(k,j,i) ) |
---|
945 | j = jj+2 |
---|
946 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
947 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
948 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
949 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
950 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
951 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
952 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
953 | - f_mg(k,j,i) ) |
---|
954 | ENDDO |
---|
955 | |
---|
956 | i = ic+1 |
---|
957 | jj = jc+2-color |
---|
958 | !DIR$ IVDEP |
---|
959 | DO k = nzb+1, ind_even_odd |
---|
960 | km1 = k+ind_even_odd |
---|
961 | kp1 = k+ind_even_odd+1 |
---|
962 | j = jj |
---|
963 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
964 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
965 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
966 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
967 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
968 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
969 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
970 | - f_mg(k,j,i) ) |
---|
971 | j = jj+2 |
---|
972 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
973 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
974 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
975 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
976 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
977 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
978 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
979 | - f_mg(k,j,i) ) |
---|
980 | ENDDO |
---|
981 | |
---|
982 | ENDDO |
---|
983 | ENDDO |
---|
984 | !$OMP END PARALLEL |
---|
985 | |
---|
986 | CALL cpu_log( log_point_s(38), 'redblack_unroll_f', 'stop' ) |
---|
987 | |
---|
988 | ENDIF |
---|
989 | |
---|
990 | ! |
---|
991 | !-- Horizontal boundary conditions |
---|
992 | CALL special_exchange_horiz( p_mg, color ) |
---|
993 | |
---|
994 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
995 | IF ( bc_dirichlet_l .OR. bc_radiation_l ) THEN |
---|
996 | p_mg(:,:,nxl_mg(l)-1) = p_mg(:,:,nxl_mg(l)) |
---|
997 | ENDIF |
---|
998 | IF ( bc_dirichlet_r .OR. bc_radiation_r ) THEN |
---|
999 | p_mg(:,:,nxr_mg(l)+1) = p_mg(:,:,nxr_mg(l)) |
---|
1000 | ENDIF |
---|
1001 | ENDIF |
---|
1002 | |
---|
1003 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
1004 | IF ( bc_dirichlet_n .OR. bc_radiation_n ) THEN |
---|
1005 | p_mg(:,nyn_mg(l)+1,:) = p_mg(:,nyn_mg(l),:) |
---|
1006 | ENDIF |
---|
1007 | IF ( bc_dirichlet_s .OR. bc_radiation_s ) THEN |
---|
1008 | p_mg(:,nys_mg(l)-1,:) = p_mg(:,nys_mg(l),:) |
---|
1009 | ENDIF |
---|
1010 | ENDIF |
---|
1011 | |
---|
1012 | ! |
---|
1013 | !-- Bottom and top boundary conditions |
---|
1014 | IF ( ibc_p_b == 1 ) THEN |
---|
1015 | ! |
---|
1016 | !-- equivalent to p_mg(nzb,:,: ) = p_mg(nzb+1,:,:) |
---|
1017 | p_mg(nzb,:,: ) = p_mg(ind_even_odd+1,:,:) |
---|
1018 | ELSE |
---|
1019 | p_mg(nzb,:,: ) = 0.0_wp |
---|
1020 | ENDIF |
---|
1021 | |
---|
1022 | IF ( ibc_p_t == 1 ) THEN |
---|
1023 | ! |
---|
1024 | !-- equivalent to p_mg(nzt_mg(l)+1,:,: ) = p_mg(nzt_mg(l),:,:) |
---|
1025 | p_mg(nzt_mg(l)+1,:,: ) = p_mg(ind_even_odd,:,:) |
---|
1026 | ELSE |
---|
1027 | p_mg(nzt_mg(l)+1,:,: ) = 0.0_wp |
---|
1028 | ENDIF |
---|
1029 | |
---|
1030 | ENDDO |
---|
1031 | |
---|
1032 | ENDDO |
---|
1033 | |
---|
1034 | END SUBROUTINE redblack |
---|
1035 | |
---|
1036 | |
---|
1037 | !------------------------------------------------------------------------------! |
---|
1038 | ! Description: |
---|
1039 | ! ------------ |
---|
1040 | !> Sort k-Dimension from sequential into blocks of even and odd. |
---|
1041 | !> This is required to vectorize the red-black subroutine. |
---|
1042 | !> Version for 3D-REAL arrays |
---|
1043 | !------------------------------------------------------------------------------! |
---|
1044 | SUBROUTINE sort_k_to_even_odd_blocks( p_mg , glevel ) |
---|
1045 | |
---|
1046 | |
---|
1047 | USE indices, & |
---|
1048 | ONLY: nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, nzt_mg |
---|
1049 | |
---|
1050 | IMPLICIT NONE |
---|
1051 | |
---|
1052 | INTEGER(iwp), INTENT(IN) :: glevel !< grid level |
---|
1053 | |
---|
1054 | REAL(wp), DIMENSION(nzb:nzt_mg(glevel)+1, & |
---|
1055 | nys_mg(glevel)-1:nyn_mg(glevel)+1, & |
---|
1056 | nxl_mg(glevel)-1:nxr_mg(glevel)+1) :: & |
---|
1057 | p_mg !< array to be sorted |
---|
1058 | ! |
---|
1059 | !-- Local variables |
---|
1060 | INTEGER(iwp) :: i !< index variable along x |
---|
1061 | INTEGER(iwp) :: j !< index variable along y |
---|
1062 | INTEGER(iwp) :: k !< index variable along z |
---|
1063 | INTEGER(iwp) :: l !< grid level |
---|
1064 | INTEGER(iwp) :: ind !< index variable along z |
---|
1065 | REAL(wp), DIMENSION(nzb:nzt_mg(glevel)+1) :: tmp !< odd-even sorted temporary array |
---|
1066 | |
---|
1067 | |
---|
1068 | CALL cpu_log( log_point_s(52), 'sort_k_to_even_odd', 'start' ) |
---|
1069 | |
---|
1070 | l = glevel |
---|
1071 | ind_even_odd = even_odd_level(l) |
---|
1072 | |
---|
1073 | !$OMP PARALLEL PRIVATE (i,j,k,ind,tmp) |
---|
1074 | !$OMP DO |
---|
1075 | DO i = nxl_mg(l)-1, nxr_mg(l)+1 |
---|
1076 | DO j = nys_mg(l)-1, nyn_mg(l)+1 |
---|
1077 | |
---|
1078 | ! |
---|
1079 | !-- Sort the data with even k index |
---|
1080 | ind = nzb-1 |
---|
1081 | DO k = nzb, nzt_mg(l), 2 |
---|
1082 | ind = ind + 1 |
---|
1083 | tmp(ind) = p_mg(k,j,i) |
---|
1084 | ENDDO |
---|
1085 | ! |
---|
1086 | !-- Sort the data with odd k index |
---|
1087 | DO k = nzb+1, nzt_mg(l)+1, 2 |
---|
1088 | ind = ind + 1 |
---|
1089 | tmp(ind) = p_mg(k,j,i) |
---|
1090 | ENDDO |
---|
1091 | |
---|
1092 | p_mg(:,j,i) = tmp |
---|
1093 | |
---|
1094 | ENDDO |
---|
1095 | ENDDO |
---|
1096 | !$OMP END PARALLEL |
---|
1097 | |
---|
1098 | CALL cpu_log( log_point_s(52), 'sort_k_to_even_odd', 'stop' ) |
---|
1099 | |
---|
1100 | END SUBROUTINE sort_k_to_even_odd_blocks |
---|
1101 | |
---|
1102 | |
---|
1103 | !------------------------------------------------------------------------------! |
---|
1104 | ! Description: |
---|
1105 | ! ------------ |
---|
1106 | !> Sort k-Dimension from sequential into blocks of even and odd. |
---|
1107 | !> This is required to vectorize the red-black subroutine. |
---|
1108 | !> Version for 1D-REAL arrays |
---|
1109 | !------------------------------------------------------------------------------! |
---|
1110 | SUBROUTINE sort_k_to_even_odd_blocks_1d( f_mg, f_mg_b, glevel ) |
---|
1111 | |
---|
1112 | |
---|
1113 | USE indices, & |
---|
1114 | ONLY: nzb, nzt_mg |
---|
1115 | |
---|
1116 | IMPLICIT NONE |
---|
1117 | |
---|
1118 | INTEGER(iwp), INTENT(IN) :: glevel !< grid level |
---|
1119 | |
---|
1120 | REAL(wp), DIMENSION(nzb+1:nzt_mg(glevel)) :: f_mg !< 1D input array |
---|
1121 | REAL(wp), DIMENSION(nzb:nzt_mg(glevel)+1) :: f_mg_b !< 1D output array |
---|
1122 | |
---|
1123 | ! |
---|
1124 | !-- Local variables |
---|
1125 | INTEGER(iwp) :: ind !< index variable along z |
---|
1126 | INTEGER(iwp) :: k !< index variable along z |
---|
1127 | |
---|
1128 | |
---|
1129 | ind = nzb - 1 |
---|
1130 | ! |
---|
1131 | !-- Sort the data with even k index |
---|
1132 | DO k = nzb, nzt_mg(glevel), 2 |
---|
1133 | ind = ind + 1 |
---|
1134 | IF ( k >= nzb+1 .AND. k <= nzt_mg(glevel) ) THEN |
---|
1135 | f_mg_b(ind) = f_mg(k) |
---|
1136 | ENDIF |
---|
1137 | ENDDO |
---|
1138 | ! |
---|
1139 | !-- Sort the data with odd k index |
---|
1140 | DO k = nzb+1, nzt_mg(glevel)+1, 2 |
---|
1141 | ind = ind + 1 |
---|
1142 | IF( k >= nzb+1 .AND. k <= nzt_mg(glevel) ) THEN |
---|
1143 | f_mg_b(ind) = f_mg(k) |
---|
1144 | ENDIF |
---|
1145 | ENDDO |
---|
1146 | |
---|
1147 | END SUBROUTINE sort_k_to_even_odd_blocks_1d |
---|
1148 | |
---|
1149 | |
---|
1150 | !------------------------------------------------------------------------------! |
---|
1151 | ! Description: |
---|
1152 | ! ------------ |
---|
1153 | !> Sort k-Dimension from sequential into blocks of even and odd. |
---|
1154 | !> This is required to vectorize the red-black subroutine. |
---|
1155 | !> Version for 2D-INTEGER arrays |
---|
1156 | !------------------------------------------------------------------------------! |
---|
1157 | ! SUBROUTINE sort_k_to_even_odd_blocks_int( i_mg , glevel ) |
---|
1158 | ! |
---|
1159 | ! |
---|
1160 | ! USE indices, & |
---|
1161 | ! ONLY: nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, nzt_mg |
---|
1162 | ! |
---|
1163 | ! IMPLICIT NONE |
---|
1164 | ! |
---|
1165 | ! INTEGER(iwp), INTENT(IN) :: glevel !< grid level |
---|
1166 | ! |
---|
1167 | ! INTEGER(iwp), DIMENSION(nzb:nzt_mg(glevel)+1, & |
---|
1168 | ! nys_mg(glevel)-1:nyn_mg(glevel)+1, & |
---|
1169 | ! nxl_mg(glevel)-1:nxr_mg(glevel)+1) :: & |
---|
1170 | ! i_mg !< array to be sorted |
---|
1171 | ! |
---|
1172 | !-- Local variables |
---|
1173 | ! INTEGER(iwp) :: i !< index variabel along x |
---|
1174 | ! INTEGER(iwp) :: j !< index variable along y |
---|
1175 | ! INTEGER(iwp) :: k !< index variable along z |
---|
1176 | ! INTEGER(iwp) :: l !< grid level |
---|
1177 | ! INTEGER(iwp) :: ind !< index variable along z |
---|
1178 | ! INTEGER(iwp),DIMENSION(nzb:nzt_mg(glevel)+1) :: tmp !< temporary odd-even sorted array |
---|
1179 | ! |
---|
1180 | ! |
---|
1181 | ! CALL cpu_log( log_point_s(52), 'sort_k_to_even_odd', 'start' ) |
---|
1182 | ! |
---|
1183 | ! l = glevel |
---|
1184 | ! ind_even_odd = even_odd_level(l) |
---|
1185 | ! |
---|
1186 | ! DO i = nxl_mg(l)-1, nxr_mg(l)+1 |
---|
1187 | ! DO j = nys_mg(l)-1, nyn_mg(l)+1 |
---|
1188 | ! |
---|
1189 | ! |
---|
1190 | !-- Sort the data with even k index |
---|
1191 | ! ind = nzb-1 |
---|
1192 | ! DO k = nzb, nzt_mg(l), 2 |
---|
1193 | ! ind = ind + 1 |
---|
1194 | ! tmp(ind) = i_mg(k,j,i) |
---|
1195 | ! ENDDO |
---|
1196 | ! |
---|
1197 | !-- Sort the data with odd k index |
---|
1198 | ! DO k = nzb+1, nzt_mg(l)+1, 2 |
---|
1199 | ! ind = ind + 1 |
---|
1200 | ! tmp(ind) = i_mg(k,j,i) |
---|
1201 | ! ENDDO |
---|
1202 | ! |
---|
1203 | ! i_mg(:,j,i) = tmp |
---|
1204 | ! |
---|
1205 | ! ENDDO |
---|
1206 | ! ENDDO |
---|
1207 | ! |
---|
1208 | ! CALL cpu_log( log_point_s(52), 'sort_k_to_even_odd', 'stop' ) |
---|
1209 | ! |
---|
1210 | ! END SUBROUTINE sort_k_to_even_odd_blocks_int |
---|
1211 | |
---|
1212 | |
---|
1213 | !------------------------------------------------------------------------------! |
---|
1214 | ! Description: |
---|
1215 | ! ------------ |
---|
1216 | !> Sort k-dimension from blocks of even and odd into sequential |
---|
1217 | !------------------------------------------------------------------------------! |
---|
1218 | SUBROUTINE sort_k_to_sequential( p_mg ) |
---|
1219 | |
---|
1220 | |
---|
1221 | USE control_parameters, & |
---|
1222 | ONLY: grid_level |
---|
1223 | |
---|
1224 | USE indices, & |
---|
1225 | ONLY: nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, nzt_mg |
---|
1226 | |
---|
1227 | IMPLICIT NONE |
---|
1228 | |
---|
1229 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
1230 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
1231 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: & |
---|
1232 | p_mg !< array to be sorted |
---|
1233 | ! |
---|
1234 | !-- Local variables |
---|
1235 | INTEGER(iwp) :: i !< index variable along x |
---|
1236 | INTEGER(iwp) :: j !< index variable along y |
---|
1237 | INTEGER(iwp) :: k !< index variable along z |
---|
1238 | INTEGER(iwp) :: l !< grid level |
---|
1239 | INTEGER(iwp) :: ind !< index variable along z |
---|
1240 | |
---|
1241 | REAL(wp),DIMENSION(nzb:nzt_mg(grid_level)+1) :: tmp |
---|
1242 | |
---|
1243 | |
---|
1244 | l = grid_level |
---|
1245 | |
---|
1246 | !$OMP PARALLEL PRIVATE (i,j,k,ind,tmp) |
---|
1247 | !$OMP DO |
---|
1248 | DO i = nxl_mg(l)-1, nxr_mg(l)+1 |
---|
1249 | DO j = nys_mg(l)-1, nyn_mg(l)+1 |
---|
1250 | |
---|
1251 | ind = nzb - 1 |
---|
1252 | tmp = p_mg(:,j,i) |
---|
1253 | DO k = nzb, nzt_mg(l), 2 |
---|
1254 | ind = ind + 1 |
---|
1255 | p_mg(k,j,i) = tmp(ind) |
---|
1256 | ENDDO |
---|
1257 | |
---|
1258 | DO k = nzb+1, nzt_mg(l)+1, 2 |
---|
1259 | ind = ind + 1 |
---|
1260 | p_mg(k,j,i) = tmp(ind) |
---|
1261 | ENDDO |
---|
1262 | ENDDO |
---|
1263 | ENDDO |
---|
1264 | !$OMP END PARALLEL |
---|
1265 | |
---|
1266 | END SUBROUTINE sort_k_to_sequential |
---|
1267 | |
---|
1268 | |
---|
1269 | !------------------------------------------------------------------------------! |
---|
1270 | ! Description: |
---|
1271 | ! ------------ |
---|
1272 | !> Gather subdomain data from all PEs. |
---|
1273 | !------------------------------------------------------------------------------! |
---|
1274 | SUBROUTINE mg_gather( f2, f2_sub ) |
---|
1275 | |
---|
1276 | USE control_parameters, & |
---|
1277 | ONLY: grid_level |
---|
1278 | |
---|
1279 | USE cpulog, & |
---|
1280 | ONLY: cpu_log, log_point_s |
---|
1281 | |
---|
1282 | USE indices, & |
---|
1283 | ONLY: mg_loc_ind, nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, nzt_mg |
---|
1284 | |
---|
1285 | IMPLICIT NONE |
---|
1286 | |
---|
1287 | INTEGER(iwp) :: i !< |
---|
1288 | INTEGER(iwp) :: il !< |
---|
1289 | INTEGER(iwp) :: ir !< |
---|
1290 | INTEGER(iwp) :: j !< |
---|
1291 | INTEGER(iwp) :: jn !< |
---|
1292 | INTEGER(iwp) :: js !< |
---|
1293 | INTEGER(iwp) :: k !< |
---|
1294 | INTEGER(iwp) :: nwords !< |
---|
1295 | |
---|
1296 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
1297 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
1298 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: f2 !< |
---|
1299 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
1300 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
1301 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: f2_l !< |
---|
1302 | |
---|
1303 | REAL(wp), DIMENSION(nzb:mg_loc_ind(5,myid)+1, & |
---|
1304 | mg_loc_ind(3,myid)-1:mg_loc_ind(4,myid)+1, & |
---|
1305 | mg_loc_ind(1,myid)-1:mg_loc_ind(2,myid)+1) :: f2_sub !< |
---|
1306 | |
---|
1307 | |
---|
1308 | #if defined( __parallel ) |
---|
1309 | CALL cpu_log( log_point_s(34), 'mg_gather', 'start' ) |
---|
1310 | |
---|
1311 | f2_l = 0.0_wp |
---|
1312 | |
---|
1313 | ! |
---|
1314 | !-- Store the local subdomain array on the total array |
---|
1315 | js = mg_loc_ind(3,myid) |
---|
1316 | IF ( south_border_pe ) js = js - 1 |
---|
1317 | jn = mg_loc_ind(4,myid) |
---|
1318 | IF ( north_border_pe ) jn = jn + 1 |
---|
1319 | il = mg_loc_ind(1,myid) |
---|
1320 | IF ( left_border_pe ) il = il - 1 |
---|
1321 | ir = mg_loc_ind(2,myid) |
---|
1322 | IF ( right_border_pe ) ir = ir + 1 |
---|
1323 | DO i = il, ir |
---|
1324 | DO j = js, jn |
---|
1325 | DO k = nzb, nzt_mg(grid_level)+1 |
---|
1326 | f2_l(k,j,i) = f2_sub(k,j,i) |
---|
1327 | ENDDO |
---|
1328 | ENDDO |
---|
1329 | ENDDO |
---|
1330 | |
---|
1331 | ! |
---|
1332 | !-- Find out the number of array elements of the total array |
---|
1333 | nwords = SIZE( f2 ) |
---|
1334 | |
---|
1335 | ! |
---|
1336 | !-- Gather subdomain data from all PEs |
---|
1337 | IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr ) |
---|
1338 | CALL MPI_ALLREDUCE( f2_l(nzb,nys_mg(grid_level)-1,nxl_mg(grid_level)-1), & |
---|
1339 | f2(nzb,nys_mg(grid_level)-1,nxl_mg(grid_level)-1), & |
---|
1340 | nwords, MPI_REAL, MPI_SUM, comm2d, ierr ) |
---|
1341 | |
---|
1342 | CALL cpu_log( log_point_s(34), 'mg_gather', 'stop' ) |
---|
1343 | #endif |
---|
1344 | |
---|
1345 | END SUBROUTINE mg_gather |
---|
1346 | |
---|
1347 | |
---|
1348 | |
---|
1349 | !------------------------------------------------------------------------------! |
---|
1350 | ! Description: |
---|
1351 | ! ------------ |
---|
1352 | !> @todo It might be possible to improve the speed of this routine by using |
---|
1353 | !> non-blocking communication |
---|
1354 | !------------------------------------------------------------------------------! |
---|
1355 | SUBROUTINE mg_scatter( p2, p2_sub ) |
---|
1356 | |
---|
1357 | USE control_parameters, & |
---|
1358 | ONLY: grid_level |
---|
1359 | |
---|
1360 | USE cpulog, & |
---|
1361 | ONLY: cpu_log, log_point_s |
---|
1362 | |
---|
1363 | USE indices, & |
---|
1364 | ONLY: mg_loc_ind, nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, nzt_mg |
---|
1365 | |
---|
1366 | IMPLICIT NONE |
---|
1367 | |
---|
1368 | INTEGER(iwp) :: nwords !< |
---|
1369 | |
---|
1370 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level-1)+1, & |
---|
1371 | nys_mg(grid_level-1)-1:nyn_mg(grid_level-1)+1, & |
---|
1372 | nxl_mg(grid_level-1)-1:nxr_mg(grid_level-1)+1) :: p2 !< |
---|
1373 | |
---|
1374 | REAL(wp), DIMENSION(nzb:mg_loc_ind(5,myid)+1, & |
---|
1375 | mg_loc_ind(3,myid)-1:mg_loc_ind(4,myid)+1, & |
---|
1376 | mg_loc_ind(1,myid)-1:mg_loc_ind(2,myid)+1) :: p2_sub !< |
---|
1377 | |
---|
1378 | ! |
---|
1379 | !-- Find out the number of array elements of the subdomain array |
---|
1380 | nwords = SIZE( p2_sub ) |
---|
1381 | |
---|
1382 | #if defined( __parallel ) |
---|
1383 | CALL cpu_log( log_point_s(35), 'mg_scatter', 'start' ) |
---|
1384 | |
---|
1385 | p2_sub = p2(:,mg_loc_ind(3,myid)-1:mg_loc_ind(4,myid)+1, & |
---|
1386 | mg_loc_ind(1,myid)-1:mg_loc_ind(2,myid)+1) |
---|
1387 | |
---|
1388 | CALL cpu_log( log_point_s(35), 'mg_scatter', 'stop' ) |
---|
1389 | #endif |
---|
1390 | |
---|
1391 | END SUBROUTINE mg_scatter |
---|
1392 | |
---|
1393 | |
---|
1394 | !------------------------------------------------------------------------------! |
---|
1395 | ! Description: |
---|
1396 | ! ------------ |
---|
1397 | !> This is where the multigrid technique takes place. V- and W- Cycle are |
---|
1398 | !> implemented and steered by the parameter "gamma". Parameter "nue" determines |
---|
1399 | !> the convergence of the multigrid iterative solution. There are nue times |
---|
1400 | !> RB-GS iterations. It should be set to "1" or "2", considering the time effort |
---|
1401 | !> one would like to invest. Last choice shows a very good converging factor, |
---|
1402 | !> but leads to an increase in computing time. |
---|
1403 | !------------------------------------------------------------------------------! |
---|
1404 | RECURSIVE SUBROUTINE next_mg_level( f_mg, p_mg, p3, r ) |
---|
1405 | |
---|
1406 | USE control_parameters, & |
---|
1407 | ONLY: bc_lr_dirrad, bc_lr_raddir, bc_ns_dirrad, bc_ns_raddir, & |
---|
1408 | child_domain, gamma_mg, grid_level_count, maximum_grid_level,& |
---|
1409 | mg_switch_to_pe0_level, mg_switch_to_pe0, ngsrb |
---|
1410 | |
---|
1411 | USE indices, & |
---|
1412 | ONLY: mg_loc_ind, nxl, nxl_mg, nxr, nxr_mg, nys, nys_mg, nyn, & |
---|
1413 | nyn_mg, nzb, nzt, nzt_mg |
---|
1414 | |
---|
1415 | IMPLICIT NONE |
---|
1416 | |
---|
1417 | INTEGER(iwp) :: i !< index variable along x |
---|
1418 | INTEGER(iwp) :: j !< index variable along y |
---|
1419 | INTEGER(iwp) :: k !< index variable along z |
---|
1420 | INTEGER(iwp) :: nxl_mg_save !< |
---|
1421 | INTEGER(iwp) :: nxr_mg_save !< |
---|
1422 | INTEGER(iwp) :: nyn_mg_save !< |
---|
1423 | INTEGER(iwp) :: nys_mg_save !< |
---|
1424 | INTEGER(iwp) :: nzt_mg_save !< |
---|
1425 | |
---|
1426 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
1427 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
1428 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: f_mg !< |
---|
1429 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
1430 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
1431 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: p_mg !< |
---|
1432 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
1433 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
1434 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: p3 !< |
---|
1435 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
1436 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
1437 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: r !< |
---|
1438 | |
---|
1439 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level-1)+1, & |
---|
1440 | nys_mg(grid_level-1)-1:nyn_mg(grid_level-1)+1, & |
---|
1441 | nxl_mg(grid_level-1)-1:nxr_mg(grid_level-1)+1) :: f2 !< |
---|
1442 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level-1)+1, & |
---|
1443 | nys_mg(grid_level-1)-1:nyn_mg(grid_level-1)+1, & |
---|
1444 | nxl_mg(grid_level-1)-1:nxr_mg(grid_level-1)+1) :: p2 !< |
---|
1445 | |
---|
1446 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: f2_sub !< |
---|
1447 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: p2_sub !< |
---|
1448 | |
---|
1449 | ! |
---|
1450 | !-- Restriction to the coarsest grid |
---|
1451 | 10 IF ( grid_level == 1 ) THEN |
---|
1452 | |
---|
1453 | ! |
---|
1454 | !-- Solution on the coarsest grid. Double the number of Gauss-Seidel |
---|
1455 | !-- iterations in order to get a more accurate solution. |
---|
1456 | ngsrb = 2 * ngsrb |
---|
1457 | |
---|
1458 | ind_even_odd = even_odd_level(grid_level) |
---|
1459 | |
---|
1460 | CALL redblack( f_mg, p_mg ) |
---|
1461 | |
---|
1462 | ngsrb = ngsrb / 2 |
---|
1463 | |
---|
1464 | |
---|
1465 | ELSEIF ( grid_level /= 1 ) THEN |
---|
1466 | |
---|
1467 | grid_level_count(grid_level) = grid_level_count(grid_level) + 1 |
---|
1468 | |
---|
1469 | ! |
---|
1470 | !-- Solution on the actual grid level |
---|
1471 | ind_even_odd = even_odd_level(grid_level) |
---|
1472 | |
---|
1473 | CALL redblack( f_mg, p_mg ) |
---|
1474 | |
---|
1475 | ! |
---|
1476 | !-- Determination of the actual residual |
---|
1477 | CALL resid( f_mg, p_mg, r ) |
---|
1478 | |
---|
1479 | !-- Restriction of the residual (finer grid values!) to the next coarser |
---|
1480 | !-- grid. Therefore, the grid level has to be decremented now. nxl..nzt have |
---|
1481 | !-- to be set to the coarse grid values, because these variables are needed |
---|
1482 | !-- for the exchange of ghost points in routine exchange_horiz |
---|
1483 | grid_level = grid_level - 1 |
---|
1484 | |
---|
1485 | nxl = nxl_mg(grid_level) |
---|
1486 | nys = nys_mg(grid_level) |
---|
1487 | nxr = nxr_mg(grid_level) |
---|
1488 | nyn = nyn_mg(grid_level) |
---|
1489 | nzt = nzt_mg(grid_level) |
---|
1490 | |
---|
1491 | IF ( grid_level == mg_switch_to_pe0_level ) THEN |
---|
1492 | |
---|
1493 | ! |
---|
1494 | !-- From this level on, calculations are done on PE0 only. |
---|
1495 | !-- First, carry out restriction on the subdomain. |
---|
1496 | !-- Therefore, indices of the level have to be changed to subdomain |
---|
1497 | !-- values in between (otherwise, the restrict routine would expect |
---|
1498 | !-- the gathered array) |
---|
1499 | |
---|
1500 | nxl_mg_save = nxl_mg(grid_level) |
---|
1501 | nxr_mg_save = nxr_mg(grid_level) |
---|
1502 | nys_mg_save = nys_mg(grid_level) |
---|
1503 | nyn_mg_save = nyn_mg(grid_level) |
---|
1504 | nzt_mg_save = nzt_mg(grid_level) |
---|
1505 | nxl_mg(grid_level) = mg_loc_ind(1,myid) |
---|
1506 | nxr_mg(grid_level) = mg_loc_ind(2,myid) |
---|
1507 | nys_mg(grid_level) = mg_loc_ind(3,myid) |
---|
1508 | nyn_mg(grid_level) = mg_loc_ind(4,myid) |
---|
1509 | nzt_mg(grid_level) = mg_loc_ind(5,myid) |
---|
1510 | nxl = mg_loc_ind(1,myid) |
---|
1511 | nxr = mg_loc_ind(2,myid) |
---|
1512 | nys = mg_loc_ind(3,myid) |
---|
1513 | nyn = mg_loc_ind(4,myid) |
---|
1514 | nzt = mg_loc_ind(5,myid) |
---|
1515 | |
---|
1516 | ALLOCATE( f2_sub(nzb:nzt_mg(grid_level)+1, & |
---|
1517 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
1518 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) ) |
---|
1519 | |
---|
1520 | CALL restrict( f2_sub, r ) |
---|
1521 | |
---|
1522 | ! |
---|
1523 | !-- Restore the correct indices of this level |
---|
1524 | nxl_mg(grid_level) = nxl_mg_save |
---|
1525 | nxr_mg(grid_level) = nxr_mg_save |
---|
1526 | nys_mg(grid_level) = nys_mg_save |
---|
1527 | nyn_mg(grid_level) = nyn_mg_save |
---|
1528 | nzt_mg(grid_level) = nzt_mg_save |
---|
1529 | nxl = nxl_mg(grid_level) |
---|
1530 | nxr = nxr_mg(grid_level) |
---|
1531 | nys = nys_mg(grid_level) |
---|
1532 | nyn = nyn_mg(grid_level) |
---|
1533 | nzt = nzt_mg(grid_level) |
---|
1534 | ! |
---|
1535 | !-- Gather all arrays from the subdomains on PE0 |
---|
1536 | CALL mg_gather( f2, f2_sub ) |
---|
1537 | |
---|
1538 | ! |
---|
1539 | !-- Set switch for routine exchange_horiz, that no ghostpoint exchange |
---|
1540 | !-- has to be carried out from now on |
---|
1541 | mg_switch_to_pe0 = .TRUE. |
---|
1542 | |
---|
1543 | ! |
---|
1544 | !-- In case of non-cyclic lateral boundary conditions, both in- and |
---|
1545 | !-- outflow conditions have to be used on all PEs after the switch, |
---|
1546 | !-- because then they have the total domain. |
---|
1547 | IF ( bc_lr_dirrad ) THEN |
---|
1548 | bc_dirichlet_l = .TRUE. |
---|
1549 | bc_dirichlet_r = .FALSE. |
---|
1550 | bc_radiation_l = .FALSE. |
---|
1551 | bc_radiation_r = .TRUE. |
---|
1552 | ELSEIF ( bc_lr_raddir ) THEN |
---|
1553 | bc_dirichlet_l = .FALSE. |
---|
1554 | bc_dirichlet_r = .TRUE. |
---|
1555 | bc_radiation_l = .TRUE. |
---|
1556 | bc_radiation_r = .FALSE. |
---|
1557 | ELSEIF ( child_domain .OR. nesting_offline ) THEN |
---|
1558 | bc_dirichlet_l = .TRUE. |
---|
1559 | bc_dirichlet_r = .TRUE. |
---|
1560 | ENDIF |
---|
1561 | |
---|
1562 | IF ( bc_ns_dirrad ) THEN |
---|
1563 | bc_dirichlet_n = .TRUE. |
---|
1564 | bc_dirichlet_s = .FALSE. |
---|
1565 | bc_radiation_n = .FALSE. |
---|
1566 | bc_radiation_s = .TRUE. |
---|
1567 | ELSEIF ( bc_ns_raddir ) THEN |
---|
1568 | bc_dirichlet_n = .FALSE. |
---|
1569 | bc_dirichlet_s = .TRUE. |
---|
1570 | bc_radiation_n = .TRUE. |
---|
1571 | bc_radiation_s = .FALSE. |
---|
1572 | ELSEIF ( child_domain .OR. nesting_offline) THEN |
---|
1573 | bc_dirichlet_s = .TRUE. |
---|
1574 | bc_dirichlet_n = .TRUE. |
---|
1575 | ENDIF |
---|
1576 | |
---|
1577 | DEALLOCATE( f2_sub ) |
---|
1578 | |
---|
1579 | ELSE |
---|
1580 | |
---|
1581 | CALL restrict( f2, r ) |
---|
1582 | |
---|
1583 | ind_even_odd = even_odd_level(grid_level) ! must be after restrict |
---|
1584 | |
---|
1585 | ENDIF |
---|
1586 | |
---|
1587 | p2 = 0.0_wp |
---|
1588 | |
---|
1589 | ! |
---|
1590 | !-- Repeat the same procedure till the coarsest grid is reached |
---|
1591 | CALL next_mg_level( f2, p2, p3, r ) |
---|
1592 | |
---|
1593 | ENDIF |
---|
1594 | |
---|
1595 | ! |
---|
1596 | !-- Now follows the prolongation |
---|
1597 | IF ( grid_level >= 2 ) THEN |
---|
1598 | |
---|
1599 | ! |
---|
1600 | !-- Prolongation of the new residual. The values are transferred |
---|
1601 | !-- from the coarse to the next finer grid. |
---|
1602 | IF ( grid_level == mg_switch_to_pe0_level+1 ) THEN |
---|
1603 | |
---|
1604 | #if defined( __parallel ) |
---|
1605 | ! |
---|
1606 | !-- At this level, the new residual first has to be scattered from |
---|
1607 | !-- PE0 to the other PEs |
---|
1608 | ALLOCATE( p2_sub(nzb:mg_loc_ind(5,myid)+1, & |
---|
1609 | mg_loc_ind(3,myid)-1:mg_loc_ind(4,myid)+1, & |
---|
1610 | mg_loc_ind(1,myid)-1:mg_loc_ind(2,myid)+1) ) |
---|
1611 | |
---|
1612 | CALL mg_scatter( p2, p2_sub ) |
---|
1613 | |
---|
1614 | ! |
---|
1615 | !-- Therefore, indices of the previous level have to be changed to |
---|
1616 | !-- subdomain values in between (otherwise, the prolong routine would |
---|
1617 | !-- expect the gathered array) |
---|
1618 | nxl_mg_save = nxl_mg(grid_level-1) |
---|
1619 | nxr_mg_save = nxr_mg(grid_level-1) |
---|
1620 | nys_mg_save = nys_mg(grid_level-1) |
---|
1621 | nyn_mg_save = nyn_mg(grid_level-1) |
---|
1622 | nzt_mg_save = nzt_mg(grid_level-1) |
---|
1623 | nxl_mg(grid_level-1) = mg_loc_ind(1,myid) |
---|
1624 | nxr_mg(grid_level-1) = mg_loc_ind(2,myid) |
---|
1625 | nys_mg(grid_level-1) = mg_loc_ind(3,myid) |
---|
1626 | nyn_mg(grid_level-1) = mg_loc_ind(4,myid) |
---|
1627 | nzt_mg(grid_level-1) = mg_loc_ind(5,myid) |
---|
1628 | |
---|
1629 | ! |
---|
1630 | !-- Set switch for routine exchange_horiz, that ghostpoint exchange |
---|
1631 | !-- has to be carried again out from now on |
---|
1632 | mg_switch_to_pe0 = .FALSE. |
---|
1633 | |
---|
1634 | ! |
---|
1635 | !-- For non-cyclic lateral boundary conditions and in case of nesting, |
---|
1636 | !-- restore the in-/outflow conditions. |
---|
1637 | bc_dirichlet_l = .FALSE.; bc_dirichlet_r = .FALSE. |
---|
1638 | bc_dirichlet_n = .FALSE.; bc_dirichlet_s = .FALSE. |
---|
1639 | bc_radiation_l = .FALSE.; bc_radiation_r = .FALSE. |
---|
1640 | bc_radiation_n = .FALSE.; bc_radiation_s = .FALSE. |
---|
1641 | |
---|
1642 | IF ( pleft == MPI_PROC_NULL ) THEN |
---|
1643 | IF ( bc_lr_dirrad .OR. child_domain .OR. nesting_offline ) & |
---|
1644 | THEN |
---|
1645 | bc_dirichlet_l = .TRUE. |
---|
1646 | ELSEIF ( bc_lr_raddir ) THEN |
---|
1647 | bc_radiation_l = .TRUE. |
---|
1648 | ENDIF |
---|
1649 | ENDIF |
---|
1650 | |
---|
1651 | IF ( pright == MPI_PROC_NULL ) THEN |
---|
1652 | IF ( bc_lr_dirrad ) THEN |
---|
1653 | bc_radiation_r = .TRUE. |
---|
1654 | ELSEIF ( bc_lr_raddir .OR. child_domain .OR. & |
---|
1655 | nesting_offline ) THEN |
---|
1656 | bc_dirichlet_r = .TRUE. |
---|
1657 | ENDIF |
---|
1658 | ENDIF |
---|
1659 | |
---|
1660 | IF ( psouth == MPI_PROC_NULL ) THEN |
---|
1661 | IF ( bc_ns_dirrad ) THEN |
---|
1662 | bc_radiation_s = .TRUE. |
---|
1663 | ELSEIF ( bc_ns_raddir .OR. child_domain .OR. & |
---|
1664 | nesting_offline ) THEN |
---|
1665 | bc_dirichlet_s = .TRUE. |
---|
1666 | ENDIF |
---|
1667 | ENDIF |
---|
1668 | |
---|
1669 | IF ( pnorth == MPI_PROC_NULL ) THEN |
---|
1670 | IF ( bc_ns_dirrad .OR. child_domain .OR. nesting_offline ) & |
---|
1671 | THEN |
---|
1672 | bc_dirichlet_n = .TRUE. |
---|
1673 | ELSEIF ( bc_ns_raddir ) THEN |
---|
1674 | bc_radiation_n = .TRUE. |
---|
1675 | ENDIF |
---|
1676 | ENDIF |
---|
1677 | |
---|
1678 | CALL prolong( p2_sub, p3 ) |
---|
1679 | |
---|
1680 | ! |
---|
1681 | !-- Restore the correct indices of the previous level |
---|
1682 | nxl_mg(grid_level-1) = nxl_mg_save |
---|
1683 | nxr_mg(grid_level-1) = nxr_mg_save |
---|
1684 | nys_mg(grid_level-1) = nys_mg_save |
---|
1685 | nyn_mg(grid_level-1) = nyn_mg_save |
---|
1686 | nzt_mg(grid_level-1) = nzt_mg_save |
---|
1687 | |
---|
1688 | DEALLOCATE( p2_sub ) |
---|
1689 | #endif |
---|
1690 | |
---|
1691 | ELSE |
---|
1692 | |
---|
1693 | CALL prolong( p2, p3 ) |
---|
1694 | |
---|
1695 | ENDIF |
---|
1696 | |
---|
1697 | ! |
---|
1698 | !-- Computation of the new pressure correction. Therefore, |
---|
1699 | !-- values from prior grids are added up automatically stage by stage. |
---|
1700 | DO i = nxl_mg(grid_level)-1, nxr_mg(grid_level)+1 |
---|
1701 | DO j = nys_mg(grid_level)-1, nyn_mg(grid_level)+1 |
---|
1702 | DO k = nzb, nzt_mg(grid_level)+1 |
---|
1703 | p_mg(k,j,i) = p_mg(k,j,i) + p3(k,j,i) |
---|
1704 | ENDDO |
---|
1705 | ENDDO |
---|
1706 | ENDDO |
---|
1707 | |
---|
1708 | ! |
---|
1709 | !-- Relaxation of the new solution |
---|
1710 | CALL redblack( f_mg, p_mg ) |
---|
1711 | |
---|
1712 | ENDIF |
---|
1713 | |
---|
1714 | |
---|
1715 | ! |
---|
1716 | !-- The following few lines serve the steering of the multigrid scheme |
---|
1717 | IF ( grid_level == maximum_grid_level ) THEN |
---|
1718 | |
---|
1719 | GOTO 20 |
---|
1720 | |
---|
1721 | ELSEIF ( grid_level /= maximum_grid_level .AND. grid_level /= 1 .AND. & |
---|
1722 | grid_level_count(grid_level) /= gamma_mg ) THEN |
---|
1723 | |
---|
1724 | GOTO 10 |
---|
1725 | |
---|
1726 | ENDIF |
---|
1727 | |
---|
1728 | ! |
---|
1729 | !-- Reset counter for the next call of poismg |
---|
1730 | grid_level_count(grid_level) = 0 |
---|
1731 | |
---|
1732 | ! |
---|
1733 | !-- Continue with the next finer level. nxl..nzt have to be |
---|
1734 | !-- set to the finer grid values, because these variables are needed for the |
---|
1735 | !-- exchange of ghost points in routine exchange_horiz |
---|
1736 | grid_level = grid_level + 1 |
---|
1737 | ind_even_odd = even_odd_level(grid_level) |
---|
1738 | |
---|
1739 | nxl = nxl_mg(grid_level) |
---|
1740 | nxr = nxr_mg(grid_level) |
---|
1741 | nys = nys_mg(grid_level) |
---|
1742 | nyn = nyn_mg(grid_level) |
---|
1743 | nzt = nzt_mg(grid_level) |
---|
1744 | |
---|
1745 | 20 CONTINUE |
---|
1746 | |
---|
1747 | END SUBROUTINE next_mg_level |
---|
1748 | |
---|
1749 | |
---|
1750 | !------------------------------------------------------------------------------! |
---|
1751 | ! Description: |
---|
1752 | ! ------------ |
---|
1753 | !> Initial settings for sorting k-dimension from sequential order (alternate |
---|
1754 | !> even/odd) into blocks of even and odd or vice versa |
---|
1755 | !------------------------------------------------------------------------------! |
---|
1756 | SUBROUTINE init_even_odd_blocks |
---|
1757 | |
---|
1758 | |
---|
1759 | USE arrays_3d, & |
---|
1760 | ONLY: f1_mg, f2_mg, f3_mg |
---|
1761 | |
---|
1762 | USE control_parameters, & |
---|
1763 | ONLY: grid_level, maximum_grid_level |
---|
1764 | |
---|
1765 | USE indices, & |
---|
1766 | ONLY: nzb, nzt, nzt_mg |
---|
1767 | |
---|
1768 | USE indices, & |
---|
1769 | ONLY: nzb, nzt_mg |
---|
1770 | |
---|
1771 | IMPLICIT NONE |
---|
1772 | ! |
---|
1773 | !-- Local variables |
---|
1774 | INTEGER(iwp) :: i !< |
---|
1775 | INTEGER(iwp) :: l !< |
---|
1776 | |
---|
1777 | LOGICAL, SAVE :: lfirst = .TRUE. |
---|
1778 | |
---|
1779 | |
---|
1780 | IF ( .NOT. lfirst ) RETURN |
---|
1781 | |
---|
1782 | ALLOCATE( even_odd_level(maximum_grid_level) ) |
---|
1783 | |
---|
1784 | ALLOCATE( f1_mg_b(nzb:nzt+1,maximum_grid_level), & |
---|
1785 | f2_mg_b(nzb:nzt+1,maximum_grid_level), & |
---|
1786 | f3_mg_b(nzb:nzt+1,maximum_grid_level) ) |
---|
1787 | |
---|
1788 | ! |
---|
1789 | !-- Set border index between the even and odd block |
---|
1790 | DO i = maximum_grid_level, 1, -1 |
---|
1791 | even_odd_level(i) = nzt_mg(i) / 2 |
---|
1792 | ENDDO |
---|
1793 | |
---|
1794 | ! |
---|
1795 | !-- Sort grid coefficients used in red/black scheme and for calculating the |
---|
1796 | !-- residual to block (even/odd) structure |
---|
1797 | DO l = maximum_grid_level, 1 , -1 |
---|
1798 | CALL sort_k_to_even_odd_blocks( f1_mg(nzb+1:nzt_mg(grid_level),l), & |
---|
1799 | f1_mg_b(nzb:nzt_mg(grid_level)+1,l), & |
---|
1800 | l ) |
---|
1801 | CALL sort_k_to_even_odd_blocks( f2_mg(nzb+1:nzt_mg(grid_level),l), & |
---|
1802 | f2_mg_b(nzb:nzt_mg(grid_level)+1,l), & |
---|
1803 | l ) |
---|
1804 | CALL sort_k_to_even_odd_blocks( f3_mg(nzb+1:nzt_mg(grid_level),l), & |
---|
1805 | f3_mg_b(nzb:nzt_mg(grid_level)+1,l), & |
---|
1806 | l ) |
---|
1807 | ENDDO |
---|
1808 | |
---|
1809 | lfirst = .FALSE. |
---|
1810 | |
---|
1811 | END SUBROUTINE init_even_odd_blocks |
---|
1812 | |
---|
1813 | |
---|
1814 | !------------------------------------------------------------------------------! |
---|
1815 | ! Description: |
---|
1816 | ! ------------ |
---|
1817 | !> Special exchange_horiz subroutine for use in redblack. Transfers only |
---|
1818 | !> "red" or "black" data points. |
---|
1819 | !------------------------------------------------------------------------------! |
---|
1820 | SUBROUTINE special_exchange_horiz( p_mg, color ) |
---|
1821 | |
---|
1822 | |
---|
1823 | USE control_parameters, & |
---|
1824 | ONLY: grid_level, mg_switch_to_pe0_level, synchronous_exchange |
---|
1825 | |
---|
1826 | USE indices, & |
---|
1827 | ONLY: nxl, nxl_mg, nxr, nxr_mg, nys, nys_mg, nyn, & |
---|
1828 | nyn_mg, nzb, nzt, nzt_mg |
---|
1829 | |
---|
1830 | IMPLICIT NONE |
---|
1831 | |
---|
1832 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
1833 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
1834 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: & |
---|
1835 | p_mg !< treated array |
---|
1836 | |
---|
1837 | INTEGER(iwp), intent(IN) :: color !< flag for grid point type (red or black) |
---|
1838 | ! |
---|
1839 | !-- Local variables |
---|
1840 | INTEGER(iwp) :: i !< index variable along x |
---|
1841 | INTEGER(iwp) :: i1 !< index variable along x on coarse level |
---|
1842 | INTEGER(iwp) :: i2 !< index variable along x on coarse level |
---|
1843 | |
---|
1844 | INTEGER(iwp) :: j !< index variable along y |
---|
1845 | INTEGER(iwp) :: j1 !< index variable along y on coarse level |
---|
1846 | INTEGER(iwp) :: j2 !< index variable along y on coarse level |
---|
1847 | INTEGER(iwp) :: k !< index variable along z |
---|
1848 | INTEGER(iwp) :: l !< short for grid level |
---|
1849 | INTEGER(iwp) :: jys !< index for lower local PE boundary along y |
---|
1850 | INTEGER(iwp) :: jyn !< index for upper local PE boundary along y |
---|
1851 | INTEGER(iwp) :: ixl !< index for lower local PE boundary along x |
---|
1852 | INTEGER(iwp) :: ixr !< index for upper local PE boundary along x |
---|
1853 | |
---|
1854 | LOGICAL :: synchronous_exchange_save !< dummy to reset synchronous_exchange to prescribed value |
---|
1855 | |
---|
1856 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: temp !< temporary array on next coarser grid level |
---|
1857 | |
---|
1858 | #if defined ( __parallel ) |
---|
1859 | synchronous_exchange_save = synchronous_exchange |
---|
1860 | synchronous_exchange = .FALSE. |
---|
1861 | |
---|
1862 | l = grid_level |
---|
1863 | |
---|
1864 | ind_even_odd = even_odd_level(grid_level) |
---|
1865 | |
---|
1866 | ! |
---|
1867 | !-- Restricted transfer only on finer levels with enough data. |
---|
1868 | !-- Restricted transfer is not possible for levels smaller or equal to |
---|
1869 | !-- 'switch to PE0 levels', since array bounds does not fit. Moreover, |
---|
1870 | !-- it is not possible for the coarsest grid level, since the dimensions |
---|
1871 | !-- of temp are not defined. For such cases, normal exchange_horiz is called. |
---|
1872 | IF ( l > 1 .AND. l > mg_switch_to_pe0_level + 1 .AND. & |
---|
1873 | ( ngp_xz(grid_level) >= 900 .OR. ngp_yz(grid_level) >= 900 ) ) THEN |
---|
1874 | |
---|
1875 | jys = nys_mg(grid_level-1) |
---|
1876 | jyn = nyn_mg(grid_level-1) |
---|
1877 | ixl = nxl_mg(grid_level-1) |
---|
1878 | ixr = nxr_mg(grid_level-1) |
---|
1879 | ALLOCATE( temp(nzb:nzt_mg(l-1)+1,jys-1:jyn+1,ixl-1:ixr+1) ) |
---|
1880 | ! |
---|
1881 | !-- Handling the even k Values |
---|
1882 | !-- Collecting data for the north - south exchange |
---|
1883 | !-- Since only every second value has to be transfered, data are stored |
---|
1884 | !-- on the next coarser grid level, because the arrays on that level |
---|
1885 | !-- have just the required size |
---|
1886 | i1 = nxl_mg(grid_level-1) |
---|
1887 | i2 = nxl_mg(grid_level-1) |
---|
1888 | |
---|
1889 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
1890 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
1891 | |
---|
1892 | IF ( j == nys_mg(l) ) THEN |
---|
1893 | !DIR$ IVDEP |
---|
1894 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
1895 | temp(k-ind_even_odd,jys,i1) = p_mg(k,j,i) |
---|
1896 | ENDDO |
---|
1897 | i1 = i1 + 1 |
---|
1898 | |
---|
1899 | ENDIF |
---|
1900 | |
---|
1901 | IF ( j == nyn_mg(l) ) THEN |
---|
1902 | !DIR$ IVDEP |
---|
1903 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
1904 | temp(k-ind_even_odd,jyn,i2) = p_mg(k,j,i) |
---|
1905 | ENDDO |
---|
1906 | i2 = i2 + 1 |
---|
1907 | |
---|
1908 | ENDIF |
---|
1909 | |
---|
1910 | ENDDO |
---|
1911 | ENDDO |
---|
1912 | |
---|
1913 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
1914 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
1915 | |
---|
1916 | IF ( j == nys_mg(l) ) THEN |
---|
1917 | !DIR$ IVDEP |
---|
1918 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
1919 | temp(k-ind_even_odd,jys,i1) = p_mg(k,j,i) |
---|
1920 | ENDDO |
---|
1921 | i1 = i1 + 1 |
---|
1922 | |
---|
1923 | ENDIF |
---|
1924 | |
---|
1925 | IF ( j == nyn_mg(l) ) THEN |
---|
1926 | !DIR$ IVDEP |
---|
1927 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
1928 | temp(k-ind_even_odd,jyn,i2) = p_mg(k,j,i) |
---|
1929 | ENDDO |
---|
1930 | i2 = i2 + 1 |
---|
1931 | |
---|
1932 | ENDIF |
---|
1933 | |
---|
1934 | ENDDO |
---|
1935 | ENDDO |
---|
1936 | |
---|
1937 | grid_level = grid_level-1 |
---|
1938 | |
---|
1939 | nxl = nxl_mg(grid_level) |
---|
1940 | nys = nys_mg(grid_level) |
---|
1941 | nxr = nxr_mg(grid_level) |
---|
1942 | nyn = nyn_mg(grid_level) |
---|
1943 | nzt = nzt_mg(grid_level) |
---|
1944 | |
---|
1945 | send_receive = 'ns' |
---|
1946 | CALL exchange_horiz( temp, 1 ) |
---|
1947 | |
---|
1948 | grid_level = grid_level+1 |
---|
1949 | |
---|
1950 | i1 = nxl_mg(grid_level-1) |
---|
1951 | i2 = nxl_mg(grid_level-1) |
---|
1952 | |
---|
1953 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
1954 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
1955 | |
---|
1956 | IF ( j == nys_mg(l) ) THEN |
---|
1957 | !DIR$ IVDEP |
---|
1958 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
1959 | p_mg(k,nyn_mg(l)+1,i) = temp(k-ind_even_odd,jyn+1,i1) |
---|
1960 | ENDDO |
---|
1961 | i1 = i1 + 1 |
---|
1962 | |
---|
1963 | ENDIF |
---|
1964 | |
---|
1965 | IF ( j == nyn_mg(l) ) THEN |
---|
1966 | !DIR$ IVDEP |
---|
1967 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
1968 | p_mg(k,nys_mg(l)-1,i) = temp(k-ind_even_odd,jys-1,i2) |
---|
1969 | ENDDO |
---|
1970 | i2 = i2 + 1 |
---|
1971 | |
---|
1972 | ENDIF |
---|
1973 | |
---|
1974 | ENDDO |
---|
1975 | ENDDO |
---|
1976 | |
---|
1977 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
1978 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
1979 | |
---|
1980 | IF ( j == nys_mg(l) ) THEN |
---|
1981 | !DIR$ IVDEP |
---|
1982 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
1983 | p_mg(k,nyn_mg(l)+1,i) = temp(k-ind_even_odd,jyn+1,i1) |
---|
1984 | ENDDO |
---|
1985 | i1 = i1 + 1 |
---|
1986 | |
---|
1987 | ENDIF |
---|
1988 | |
---|
1989 | IF ( j == nyn_mg(l) ) THEN |
---|
1990 | !DIR$ IVDEP |
---|
1991 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
1992 | p_mg(k,nys_mg(l)-1,i) = temp(k-ind_even_odd,jys-1,i2) |
---|
1993 | ENDDO |
---|
1994 | i2 = i2 + 1 |
---|
1995 | |
---|
1996 | ENDIF |
---|
1997 | |
---|
1998 | ENDDO |
---|
1999 | ENDDO |
---|
2000 | |
---|
2001 | ! |
---|
2002 | !-- Collecting data for the left - right exchange |
---|
2003 | !-- Since only every second value has to be transfered, data are stored |
---|
2004 | !-- on the next coarser grid level, because the arrays on that level |
---|
2005 | !-- have just the required size |
---|
2006 | j1 = nys_mg(grid_level-1) |
---|
2007 | j2 = nys_mg(grid_level-1) |
---|
2008 | |
---|
2009 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
2010 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
2011 | |
---|
2012 | IF ( i == nxl_mg(l) ) THEN |
---|
2013 | !DIR$ IVDEP |
---|
2014 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
2015 | temp(k-ind_even_odd,j1,ixl) = p_mg(k,j,i) |
---|
2016 | ENDDO |
---|
2017 | j1 = j1 + 1 |
---|
2018 | |
---|
2019 | ENDIF |
---|
2020 | |
---|
2021 | IF ( i == nxr_mg(l) ) THEN |
---|
2022 | !DIR$ IVDEP |
---|
2023 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
2024 | temp(k-ind_even_odd,j2,ixr) = p_mg(k,j,i) |
---|
2025 | ENDDO |
---|
2026 | j2 = j2 + 1 |
---|
2027 | |
---|
2028 | ENDIF |
---|
2029 | |
---|
2030 | ENDDO |
---|
2031 | ENDDO |
---|
2032 | |
---|
2033 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
2034 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
2035 | |
---|
2036 | IF ( i == nxl_mg(l) ) THEN |
---|
2037 | !DIR$ IVDEP |
---|
2038 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
2039 | temp(k-ind_even_odd,j1,ixl) = p_mg(k,j,i) |
---|
2040 | ENDDO |
---|
2041 | j1 = j1 + 1 |
---|
2042 | |
---|
2043 | ENDIF |
---|
2044 | |
---|
2045 | IF ( i == nxr_mg(l) ) THEN |
---|
2046 | !DIR$ IVDEP |
---|
2047 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
2048 | temp(k-ind_even_odd,j2,ixr) = p_mg(k,j,i) |
---|
2049 | ENDDO |
---|
2050 | j2 = j2 + 1 |
---|
2051 | |
---|
2052 | ENDIF |
---|
2053 | |
---|
2054 | ENDDO |
---|
2055 | ENDDO |
---|
2056 | |
---|
2057 | grid_level = grid_level-1 |
---|
2058 | send_receive = 'lr' |
---|
2059 | |
---|
2060 | CALL exchange_horiz( temp, 1 ) |
---|
2061 | |
---|
2062 | grid_level = grid_level+1 |
---|
2063 | |
---|
2064 | j1 = nys_mg(grid_level-1) |
---|
2065 | j2 = nys_mg(grid_level-1) |
---|
2066 | |
---|
2067 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
2068 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
2069 | |
---|
2070 | IF ( i == nxl_mg(l) ) THEN |
---|
2071 | !DIR$ IVDEP |
---|
2072 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
2073 | p_mg(k,j,nxr_mg(l)+1) = temp(k-ind_even_odd,j1,ixr+1) |
---|
2074 | ENDDO |
---|
2075 | j1 = j1 + 1 |
---|
2076 | |
---|
2077 | ENDIF |
---|
2078 | |
---|
2079 | IF ( i == nxr_mg(l) ) THEN |
---|
2080 | !DIR$ IVDEP |
---|
2081 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
2082 | p_mg(k,j,nxl_mg(l)-1) = temp(k-ind_even_odd,j2,ixl-1) |
---|
2083 | ENDDO |
---|
2084 | j2 = j2 + 1 |
---|
2085 | |
---|
2086 | ENDIF |
---|
2087 | |
---|
2088 | ENDDO |
---|
2089 | ENDDO |
---|
2090 | |
---|
2091 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
2092 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
2093 | |
---|
2094 | IF ( i == nxl_mg(l) ) THEN |
---|
2095 | !DIR$ IVDEP |
---|
2096 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
2097 | p_mg(k,j,nxr_mg(l)+1) = temp(k-ind_even_odd,j1,ixr+1) |
---|
2098 | ENDDO |
---|
2099 | j1 = j1 + 1 |
---|
2100 | |
---|
2101 | ENDIF |
---|
2102 | |
---|
2103 | IF ( i == nxr_mg(l) ) THEN |
---|
2104 | !DIR$ IVDEP |
---|
2105 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
2106 | p_mg(k,j,nxl_mg(l)-1) = temp(k-ind_even_odd,j2,ixl-1) |
---|
2107 | ENDDO |
---|
2108 | j2 = j2 + 1 |
---|
2109 | |
---|
2110 | ENDIF |
---|
2111 | |
---|
2112 | ENDDO |
---|
2113 | ENDDO |
---|
2114 | |
---|
2115 | ! |
---|
2116 | !-- Now handling the even k values |
---|
2117 | !-- Collecting data for the north - south exchange |
---|
2118 | !-- Since only every second value has to be transfered, data are stored |
---|
2119 | !-- on the next coarser grid level, because the arrays on that level |
---|
2120 | !-- have just the required size |
---|
2121 | i1 = nxl_mg(grid_level-1) |
---|
2122 | i2 = nxl_mg(grid_level-1) |
---|
2123 | |
---|
2124 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
2125 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
2126 | |
---|
2127 | IF ( j == nys_mg(l) ) THEN |
---|
2128 | !DIR$ IVDEP |
---|
2129 | DO k = nzb+1, ind_even_odd |
---|
2130 | temp(k,jys,i1) = p_mg(k,j,i) |
---|
2131 | ENDDO |
---|
2132 | i1 = i1 + 1 |
---|
2133 | |
---|
2134 | ENDIF |
---|
2135 | |
---|
2136 | IF ( j == nyn_mg(l) ) THEN |
---|
2137 | !DIR$ IVDEP |
---|
2138 | DO k = nzb+1, ind_even_odd |
---|
2139 | temp(k,jyn,i2) = p_mg(k,j,i) |
---|
2140 | ENDDO |
---|
2141 | i2 = i2 + 1 |
---|
2142 | |
---|
2143 | ENDIF |
---|
2144 | |
---|
2145 | ENDDO |
---|
2146 | ENDDO |
---|
2147 | |
---|
2148 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
2149 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
2150 | |
---|
2151 | IF ( j == nys_mg(l) ) THEN |
---|
2152 | !DIR$ IVDEP |
---|
2153 | DO k = nzb+1, ind_even_odd |
---|
2154 | temp(k,jys,i1) = p_mg(k,j,i) |
---|
2155 | ENDDO |
---|
2156 | i1 = i1 + 1 |
---|
2157 | |
---|
2158 | ENDIF |
---|
2159 | |
---|
2160 | IF ( j == nyn_mg(l) ) THEN |
---|
2161 | !DIR$ IVDEP |
---|
2162 | DO k = nzb+1, ind_even_odd |
---|
2163 | temp(k,jyn,i2) = p_mg(k,j,i) |
---|
2164 | ENDDO |
---|
2165 | i2 = i2 + 1 |
---|
2166 | |
---|
2167 | ENDIF |
---|
2168 | |
---|
2169 | ENDDO |
---|
2170 | ENDDO |
---|
2171 | |
---|
2172 | grid_level = grid_level-1 |
---|
2173 | |
---|
2174 | send_receive = 'ns' |
---|
2175 | CALL exchange_horiz( temp, 1 ) |
---|
2176 | |
---|
2177 | grid_level = grid_level+1 |
---|
2178 | |
---|
2179 | i1 = nxl_mg(grid_level-1) |
---|
2180 | i2 = nxl_mg(grid_level-1) |
---|
2181 | |
---|
2182 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
2183 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
2184 | |
---|
2185 | IF ( j == nys_mg(l) ) THEN |
---|
2186 | !DIR$ IVDEP |
---|
2187 | DO k = nzb+1, ind_even_odd |
---|
2188 | p_mg(k,nyn_mg(l)+1,i) = temp(k,jyn+1,i1) |
---|
2189 | ENDDO |
---|
2190 | i1 = i1 + 1 |
---|
2191 | |
---|
2192 | ENDIF |
---|
2193 | |
---|
2194 | IF ( j == nyn_mg(l) ) THEN |
---|
2195 | !DIR$ IVDEP |
---|
2196 | DO k = nzb+1, ind_even_odd |
---|
2197 | p_mg(k,nys_mg(l)-1,i) = temp(k,jys-1,i2) |
---|
2198 | ENDDO |
---|
2199 | i2 = i2 + 1 |
---|
2200 | |
---|
2201 | ENDIF |
---|
2202 | |
---|
2203 | ENDDO |
---|
2204 | ENDDO |
---|
2205 | |
---|
2206 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
2207 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
2208 | |
---|
2209 | IF ( j == nys_mg(l) ) THEN |
---|
2210 | !DIR$ IVDEP |
---|
2211 | DO k = nzb+1, ind_even_odd |
---|
2212 | p_mg(k,nyn_mg(l)+1,i) = temp(k,jyn+1,i1) |
---|
2213 | ENDDO |
---|
2214 | i1 = i1 + 1 |
---|
2215 | |
---|
2216 | ENDIF |
---|
2217 | |
---|
2218 | IF ( j == nyn_mg(l) ) THEN |
---|
2219 | !DIR$ IVDEP |
---|
2220 | DO k = nzb+1, ind_even_odd |
---|
2221 | p_mg(k,nys_mg(l)-1,i) = temp(k,jys-1,i2) |
---|
2222 | ENDDO |
---|
2223 | i2 = i2 + 1 |
---|
2224 | |
---|
2225 | ENDIF |
---|
2226 | |
---|
2227 | ENDDO |
---|
2228 | ENDDO |
---|
2229 | |
---|
2230 | j1 = nys_mg(grid_level-1) |
---|
2231 | j2 = nys_mg(grid_level-1) |
---|
2232 | |
---|
2233 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
2234 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
2235 | |
---|
2236 | IF ( i == nxl_mg(l) ) THEN |
---|
2237 | !DIR$ IVDEP |
---|
2238 | DO k = nzb+1, ind_even_odd |
---|
2239 | temp(k,j1,ixl) = p_mg(k,j,i) |
---|
2240 | ENDDO |
---|
2241 | j1 = j1 + 1 |
---|
2242 | |
---|
2243 | ENDIF |
---|
2244 | |
---|
2245 | IF ( i == nxr_mg(l) ) THEN |
---|
2246 | !DIR$ IVDEP |
---|
2247 | DO k = nzb+1, ind_even_odd |
---|
2248 | temp(k,j2,ixr) = p_mg(k,j,i) |
---|
2249 | ENDDO |
---|
2250 | j2 = j2 + 1 |
---|
2251 | |
---|
2252 | ENDIF |
---|
2253 | |
---|
2254 | ENDDO |
---|
2255 | ENDDO |
---|
2256 | |
---|
2257 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
2258 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
2259 | |
---|
2260 | IF ( i == nxl_mg(l) ) THEN |
---|
2261 | !DIR$ IVDEP |
---|
2262 | DO k = nzb+1, ind_even_odd |
---|
2263 | temp(k,j1,ixl) = p_mg(k,j,i) |
---|
2264 | ENDDO |
---|
2265 | j1 = j1 + 1 |
---|
2266 | |
---|
2267 | ENDIF |
---|
2268 | |
---|
2269 | IF ( i == nxr_mg(l) ) THEN |
---|
2270 | !DIR$ IVDEP |
---|
2271 | DO k = nzb+1, ind_even_odd |
---|
2272 | temp(k,j2,ixr) = p_mg(k,j,i) |
---|
2273 | ENDDO |
---|
2274 | j2 = j2 + 1 |
---|
2275 | |
---|
2276 | ENDIF |
---|
2277 | |
---|
2278 | ENDDO |
---|
2279 | ENDDO |
---|
2280 | |
---|
2281 | grid_level = grid_level-1 |
---|
2282 | |
---|
2283 | send_receive = 'lr' |
---|
2284 | CALL exchange_horiz( temp, 1 ) |
---|
2285 | |
---|
2286 | grid_level = grid_level+1 |
---|
2287 | |
---|
2288 | nxl = nxl_mg(grid_level) |
---|
2289 | nys = nys_mg(grid_level) |
---|
2290 | nxr = nxr_mg(grid_level) |
---|
2291 | nyn = nyn_mg(grid_level) |
---|
2292 | nzt = nzt_mg(grid_level) |
---|
2293 | |
---|
2294 | j1 = nys_mg(grid_level-1) |
---|
2295 | j2 = nys_mg(grid_level-1) |
---|
2296 | |
---|
2297 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
2298 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
2299 | |
---|
2300 | IF ( i == nxl_mg(l) ) THEN |
---|
2301 | !DIR$ IVDEP |
---|
2302 | DO k = nzb+1, ind_even_odd |
---|
2303 | p_mg(k,j,nxr_mg(l)+1) = temp(k,j1,ixr+1) |
---|
2304 | ENDDO |
---|
2305 | j1 = j1 + 1 |
---|
2306 | |
---|
2307 | ENDIF |
---|
2308 | |
---|
2309 | IF ( i == nxr_mg(l) ) THEN |
---|
2310 | !DIR$ IVDEP |
---|
2311 | DO k = nzb+1, ind_even_odd |
---|
2312 | p_mg(k,j,nxl_mg(l)-1) = temp(k,j2,ixl-1) |
---|
2313 | ENDDO |
---|
2314 | j2 = j2 + 1 |
---|
2315 | |
---|
2316 | ENDIF |
---|
2317 | |
---|
2318 | ENDDO |
---|
2319 | ENDDO |
---|
2320 | |
---|
2321 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
2322 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
2323 | |
---|
2324 | IF ( i == nxl_mg(l) ) THEN |
---|
2325 | !DIR$ IVDEP |
---|
2326 | DO k = nzb+1, ind_even_odd |
---|
2327 | p_mg(k,j,nxr_mg(l)+1) = temp(k,j1,ixr+1) |
---|
2328 | ENDDO |
---|
2329 | j1 = j1 + 1 |
---|
2330 | |
---|
2331 | ENDIF |
---|
2332 | |
---|
2333 | IF ( i == nxr_mg(l) ) THEN |
---|
2334 | !DIR$ IVDEP |
---|
2335 | DO k = nzb+1, ind_even_odd |
---|
2336 | p_mg(k,j,nxl_mg(l)-1) = temp(k,j2,ixl-1) |
---|
2337 | ENDDO |
---|
2338 | j2 = j2 + 1 |
---|
2339 | |
---|
2340 | ENDIF |
---|
2341 | |
---|
2342 | ENDDO |
---|
2343 | ENDDO |
---|
2344 | |
---|
2345 | DEALLOCATE( temp ) |
---|
2346 | |
---|
2347 | ELSE |
---|
2348 | |
---|
2349 | ! |
---|
2350 | !-- Standard horizontal ghost boundary exchange for small coarse grid |
---|
2351 | !-- levels, where the transfer time is latency bound |
---|
2352 | CALL exchange_horiz( p_mg, 1 ) |
---|
2353 | |
---|
2354 | ENDIF |
---|
2355 | |
---|
2356 | ! |
---|
2357 | !-- Reset values to default PALM setup |
---|
2358 | synchronous_exchange = synchronous_exchange_save |
---|
2359 | send_receive = 'al' |
---|
2360 | #else |
---|
2361 | |
---|
2362 | ! |
---|
2363 | !-- Standard horizontal ghost boundary exchange for small coarse grid |
---|
2364 | !-- levels, where the transfer time is latency bound |
---|
2365 | CALL exchange_horiz( p_mg, 1 ) |
---|
2366 | #endif |
---|
2367 | |
---|
2368 | END SUBROUTINE special_exchange_horiz |
---|
2369 | |
---|
2370 | END MODULE poismg_mod |
---|